Kaiyodo describes itself as a pioneer and major player in Japanese figure production. Its present business includes high-quality toys, capsule products, action figures and garage kits, as well as sculptural production for museums, publications and events.[1]

1964–1970s: From a tiny model shop

Kaiyodo was founded on April 1, 1964, by Osamu Miyawaki. The company began as an extremely small model shop near Keihan Doi Station in Osaka Prefecture, occupying roughly one-and-a-half tsubo, or only a few square metres.[1]

Miyawaki’s original ambition was not necessarily to create a major figure company. The shop was established around the concept of giving people the opportunity to enjoy creating things. Kaiyodo’s stated concept, “創るたのしみをすべての人に”, can be translated roughly as “the joy of creating for everyone.”[1]

During the 1970s, the shop developed into a centre for hobbyists and model builders. Kaiyodo opened a larger hobby facility in Kadoma in 1977, including features such as a tank-diorama course and racing circuit.[1]

This period was significant because Kaiyodo was gradually becoming more than a retailer; it was evolving into a community of model makers and creators.

The garage-kit revolution

The most important transformation in Kaiyodo’s history occurred during the 1980s.

In 1980, Kaiyodo began producing original kits using materials including resin and vacuum-formed plastic, and established its own sculpting and modelling department.[1] These products belonged to what became known as the garage-kit movement.

A garage kit is essentially a model kit produced on a relatively small scale, often involving highly detailed sculpting and casting rather than the industrial injection-moulding techniques used by major toy companies. Garage kits became particularly important to Japanese hobbyists because they allowed creators to make subjects and designs that conventional toy manufacturers were unwilling or unable to produce.

Kaiyodo’s early garage kits included subjects such as monsters and characters, while the company also expanded into military subjects, historical objects and natural-history topics.[3]

In 1982, Kaiyodo released its first self-developed kit after obtaining rights for the Atragon battleship Gotengo (Gōten-gō). In 1983, it introduced its Museum Series, which became an important precursor to the company’s later nature and museum-related figure work.[1]

By 1984, Kaiyodo had opened the Kaiyodo Gallery in Kayabacho, Tokyo, and shifted its business focus toward developing, manufacturing and selling its own figures and kits. This effectively marked its transition from a hobby shop into a specialised figure manufacturer.[1]

One of the most notable aspects of Kaiyodo is that the company has historically emphasised sculptors and creators rather than treating them simply as anonymous factory workers.

Kaiyodo has described itself as a group of “moulding masters”, referring to highly skilled individuals whose knowledge of sculpting and individual creative abilities are central to the company. The Japanese government’s Highlighting Japan described Kaiyodo’s philosophy as one in which the people actually making the figures are also deeply involved in planning and conceptualising the products.[3]

This philosophy helps explain why Kaiyodo figures often have a distinctive sculptural quality. The company’s approach can be summarised as follows:

• Sculpture first
• Extremely high attention to anatomical and mechanical detail
• Strong emphasis on individual sculptors
• Willingness to make unconventional subjects
• Combining entertainment with education
• Turning obscure or ordinary objects into collectible sculptures
• Treating figures as objects of appreciation rather than merely toys

Kaiyodo itself emphasises making things that are new, enjoyable, unusual, interesting and difficult to find elsewhere.[1]

Although Kaiyodo is now strongly associated with anime, manga, tokusatsu and video-game figures, that represents only part of its identity. The company’s catalogue has historically included a wide variety of categories.

Animals and nature

Kaiyodo became famous for exceptionally detailed representations of animals, insects and other organisms. This eventually led to products that could function almost like miniature natural-history specimens. Examples include mammals, birds, insects, marine life, dinosaurs, fossils, reptiles and amphibians. The Japanese government notes that Kaiyodo has created figures ranging from Japanese animals and dinosaurs to monsters, anime and video-game characters and Buddhist statues.[3]

Military subjects

Military modelling has also been a major part of Kaiyodo’s history, including highly detailed representations of tanks, ships, aircraft, military equipment and dioramas.

Historical and cultural subjects

Kaiyodo has transformed subjects normally associated with museums into three-dimensional collectibles. These have included Buddhist statues, historical artefacts, Japanese cultural objects, artworks and archaeological subjects.

Pop culture

At the same time, Kaiyodo became heavily involved in anime, manga, tokusatsu, video games, science fiction, fantasy, superheroes, monsters and film characters. This combination of high culture, natural history and pop culture is one of the factors that makes Kaiyodo unusual.

One of Kaiyodo’s biggest contributions to Japanese collecting culture was its role in demonstrating that small, inexpensive capsule figures could still have extraordinary sculptural quality.

During the late 1990s and 2000s, Kaiyodo became particularly well known for figures sold through shokugan (food/toy combinations) and capsule-toy distribution.[2] The company’s approach essentially challenged the assumption that a cheap collectible had to be crude. Kaiyodo’s philosophy became: small + inexpensive + mass-produced ≠ low quality. This helped transform the perception of miniature figures in Japan.

The company’s description of its capsule-museum concept emphasises the idea of putting a “small museum” into capsule form, covering subjects ranging from animals and dinosaurs to art, yokai, tanks and food culture.[1]

Capsule Q Museum

Capsule Q Museum is one of the clearest examples of this philosophy. Rather than simply producing random character toys, the series has included miniature representations of animals, dinosaurs, Buddhist statues, ships, historical objects, yokai, scientific subjects, art and archaeological mysteries.

Kaiyodo has described the concept as essentially creating a comprehensive museum in capsule size.[1] This also led to collaborations with museums, zoos, aquariums and other institutions. Kaiyodo’s museum-capsule projects were particularly innovative because official museum merchandise could be distributed through inexpensive capsule machines rather than conventional museum gift shops.[1]

Revoltech

One of Kaiyodo’s most famous modern product lines is Revoltech, short for Revolver Technology. Revoltech is an articulated action-figure system built around Kaiyodo’s distinctive revolver joints. These joints allow figures to achieve a wide range of poses while maintaining a relatively compact mechanical design.

The line has been used for characters and subjects from numerous franchises. Revoltech helped establish Kaiyodo as a major player in the high-end articulated action-figure market, rather than simply the garage-kit and static-figure market. Kaiyodo continues to list Revoltech among its major brands, with new releases and reissues appearing in its current catalogue.[1]

Amazing Yamaguchi

Another major Kaiyodo brand is Amazing Yamaguchi, named after sculptor and designer Yamaguchi Katsuhisa. The series focuses heavily on highly articulated characters, particularly superheroes, manga characters and other dynamic subjects.

The design philosophy differs from a traditional statue: the figure is intended to move dramatically and reproduce exaggerated poses. Consequently, Amazing Yamaguchi figures tend to feature large articulation ranges, multiple joints, stylised proportions, strong silhouettes, dynamic posing, numerous interchangeable parts and dramatic action poses. It has become one of Kaiyodo’s flagship action-figure lines.

Evangelion

Neon Genesis Evangelion has a particularly important place in Kaiyodo’s history. Kaiyodo states that its relationship with Evangelion dates back to the beginning of the television series in 1995, when the company was still strongly associated with garage kits. It subsequently produced Evangelion action figures and capsule products, making the franchise one of its longstanding core properties.[1]

Kaiyodo describes Evangelion not merely as another licensed anime property but as one of its standard core titles. Its Evangelion products have therefore appeared in multiple formats over the years, including garage kits, static figures, action figures, capsule figures and collectibles.

Kaiyodo is closely associated with Wonder Festival, commonly known as WonFes. Wonder Festival is one of Japan’s most important events for figures, garage kits and independent sculptors.

Kaiyodo’s role is especially significant because the event provides a space where independent sculptors can display their work, garage kits can be sold, professional manufacturers can reveal products, fans can meet creators, original characters can be exhibited, and licensed character kits can be sold under event-specific arrangements.

Kaiyodo identifies Wonder Festival as Japan’s largest modelling/figure event and lists its organisation among its business activities.[1] In this sense, Kaiyodo’s influence extends beyond its own products: it has helped create and maintain an ecosystem for Japanese figure culture.

A particularly unusual characteristic of Kaiyodo is the prominence given to individual figure artists and sculptors. In conventional mass-produced toys, consumers often focus almost entirely on the franchise or character. Kaiyodo helped popularise another model: Character → Sculptor → Figure.

Collectors may specifically seek out a figure because of the person who sculpted it. This culture of recognisable figure artists became particularly important in Japanese garage kits and later spread into commercial action figures. The Kaiyodo Figure Museum, for example, has displays highlighting the work of individual creators, reflecting how important sculptors are to the company’s identity.[3]

Kaiyodo’s relationship with museums is another major part of its identity. Its sculptors have produced realistic models for museums and exhibitions, including natural-history subjects.

According to the Japanese government’s Highlighting Japan, Kaiyodo figures have been used as production references for internationally known dinosaur films, while the American Museum of Natural History commissioned Kaiyodo to create models for exhibition use.[3] This illustrates an important distinction: Kaiyodo is not simply a toy manufacturer. Its sculpting capabilities have also been used for museum exhibits, educational models, scientific subjects, exhibition pieces, dioramas, commercial displays and promotional objects.

Kaiyodo Figure Museum

Kaiyodo’s influence has also been preserved through museums dedicated to its work. The Kaiyodo Figure Museum in Japan contains thousands of figures, ranging from extremely small capsule figures to large-scale sculptures. The exhibits cover anime and manga but also animals, airplanes, dinosaurs, Buddhist deities and other subjects.[3]

The museum demonstrates the enormous breadth of Kaiyodo’s production philosophy. Instead of viewing figures only as merchandise, it presents them as a form of Japanese modelling culture and craftsmanship.

Kaiyodo’s overall catalogue can be divided into several major areas:

Kaiyodo’s current official lineup includes brands such as Revoltech, Evangelion Evolution, Amazing Yamaguchi, Capsule Figures, KT Project, RevoGeo, MiniQ, Movie Revo, Character Classics, Assemble Borg Nexus, Sofubi Toy Box, Nature, Mega Sofubi and others.[1]

Kaiyodo’s importance can be understood through several key characteristics:

1. Sculptural quality: Kaiyodo has historically placed extraordinary importance on the actual sculpt. The company’s products often have more detailed anatomy, textures and surface treatment than ordinary mass-market toys.
2. Subject diversity: Kaiyodo will make almost anything interesting enough to sculpt. A dinosaur, Buddhist statue, military tank, anime character and insect can all exist within the same company’s catalogue.
3. Creator-driven culture: Individual sculptors have unusually high visibility and influence.
4. Garage-kit heritage: The company grew out of the Japanese garage-kit movement rather than beginning as a conventional mass-market toy corporation.
5. High quality at small scale: Kaiyodo helped prove that inexpensive miniature collectibles could contain surprisingly sophisticated sculpting.
6. Educational value: Many Kaiyodo products are effectively miniature educational objects, especially those involving animals, history, art and science.

Kaiyodo’s historical significance goes beyond the products themselves. The company developed alongside the growth of Japanese otaku culture, particularly from the 1980s onward. An art-museum exhibition examining Kaiyodo described the company as having developed alongside otaku culture and highlighted its movement from plastic models and garage kits into anime, manga, movie characters, military subjects, dinosaurs, animals and museum objects.[2]

In that respect, Kaiyodo helped establish a bridge between hobby modelling, garage kits, otaku culture, collectible figures and modern action figures. This is a major reason collectors and historians consider Kaiyodo an important company in the development of Japanese figure culture.

As of 2026, Kaiyodo remains active in figure manufacturing and continues to release new products under its established brands. Its official site currently lists new and upcoming products involving Revoltech, Amazing Yamaguchi, Yu-Gi-Oh!, Evangelion and other properties, while continuing its capsule, nature, museum and modelling lines.[1]

The company has also continued developing its art-related activities; its current website lists KAIYODO ART GALLERY among its recent initiatives.[1] Its present headquarters are in Kadoma, Osaka, and its business continues to encompass high-quality toys, capsule products, action figures and garage kits.[1]

Kaiyodo’s legacy can be summarised as the transformation of the Japanese model figure from a simple hobby product into a sophisticated collectible and sculptural medium. It began as a tiny Osaka model shop in 1964 and subsequently evolved from a hobby shop into a modelling community, a garage-kit manufacturer, a figure company, a capsule-toy innovator, an action-figure manufacturer, a museum/exhibition producer, and an international figure brand.

Its most important contribution may not be any single figure or franchise. Rather, it helped establish a philosophy that almost anything can become a worthwhile three-dimensional object if it is sculpted with enough knowledge, skill and creativity. That philosophy explains why Kaiyodo can place an anime character, a dinosaur, an insect, a military vehicle, a Buddhist statue and a famous work of art within essentially the same creative universe.

Kaiyodo is considered one of the foundational companies of modern Japanese figure culture. Its significance lies not only in the toys it sells, but in its role in the development of garage kits, sculptor culture, capsule collectibles, otaku merchandise, articulated figures, museum miniatures and Japanese modelling as an art form.

1. 海洋堂とは｜フィギュアの造形企画製作、販売を行う株式会社海洋堂
2. Desire and Consumption－KAIYODO and OTAKU Culture | TFAM
3. Kaiyodo Figure Museum | Search Details | Japan Tourism Agency,Japan Tourism Agency