What Is Kaiyodo? The Revoltech and Amazing Yamaguchi Figure Maker, Explained
Kaiyodo is the Japanese company behind two of the most recognizable names in articulated anime figures: Revoltech and Amazing Yamaguchi. If you have ever seen a Deadpool or Izuku Midoriya figure frozen in a pose that looks pulled straight from a manga panel, there is a good chance Kaiyodo made it.
This guide explains what Kaiyodo is, who actually makes Revoltech and Amazing Yamaguchi, what the Revolver Joint does, and how these figures compare to figma and S.H.Figuarts. If you are deciding whether a Kaiyodo figure belongs on your shelf, this is the background collectors ask about most.
Every fact below is drawn from Kaiyodo's own materials and public records, with the sources listed at the end.
What is Kaiyodo?
Kaiyodo (株式会社海洋堂) is a Japanese figure manufacturer, founded on April 1, 1964, that designs, produces, and sells figures and garage kits. It began as a small hobby shop in Moriguchi, Osaka, opened by founder Osamu Miyawaki, and moved to neighboring Kadoma City in 1977, where it is still headquartered today. The company is now led by CEO Shuichi Miyawaki.
Kaiyodo built its reputation on sculpting rather than mass production. Its roots are in garage kits — limited-run, hand-assembled resin models made for serious hobbyists — and that origin still shapes the brand. Its most celebrated sculptor, known simply as Bome, earned a worldwide following for the "Mon-sieur BOME" collection, and that sculptor-first culture is why Kaiyodo figures are prized for their detail rather than their price point.
The company also runs the Kaiyodo Figure Museum Miraiza Osaka Castle, which opened in 2022 inside the Miraiza building at Osaka Castle and displays more than 3,000 pieces of its work across themed areas. For a manufacturer to open a museum of its own output tells you how much of its identity is tied to craft.
- Founded: April 1, 1964
- Founder: Osamu Miyawaki (current CEO: Shuichi Miyawaki)
- Headquarters: Kadoma City, Osaka Prefecture, Japan
- Known for: Revoltech, Amazing Yamaguchi, garage kits, and detailed capsule figures
What is Revoltech? The Revolver Joint, explained
Revoltech is Kaiyodo's articulated action-figure line, launched in 2006, and its name is a portmanteau of "Revolver Technology." The technology it points to is the Revolver Joint, the mechanism that lets these figures hold dramatic poses without drooping over time.
The Revolver Joint is built from three parts: two half-spheres whose flat faces create the friction surface, and a cross-section pin that locks the assembly together. Because the joint ratchets into fixed positions, it clicks as you move it and stays put once posed. That combination of a wide range of motion plus a joint that actually holds is the whole reason collectors reach for Revoltech.
Kaiyodo groups its Revoltech releases into four broad categories:
- Real Robot — grounded, realistic mecha designs
- Super Robot — classic super-robot heroes
- Humanoid — anime, game, and comic characters
- Creature — monsters, kaiju, and dinosaurs
Why collectors like the Revolver Joint
The appeal comes down to three things that ball-jointed figures do not always deliver together:
- It holds a pose. The ratcheting design resists gravity, so a figure locked into an action stance will not slowly sag on your shelf.
- It moves a long way. The revolving pin gives each joint a wide arc of rotation, which is what makes those exaggerated fighting poses possible.
- It comes with parts to use it. Most releases ship with effect pieces, swappable hands, and alternate faces built around the joint's range.
What is Amazing Yamaguchi? Kaiyodo's premium articulated line
Amazing Yamaguchi is Kaiyodo's premium Revoltech sub-line, launched in 2016 and overseen by sculptor Katsuhisa Yamaguchi. Its very first release, No.001, was Deadpool — a deliberate signal that the line would chase the extreme, panel-accurate poses that Western comic fans wanted.
The Revolver Joint grew out of what Kaiyodo calls "Yamaguchi-style articulation," a movement system devised by Katsuhisa Yamaguchi. Amazing Yamaguchi pushes that system further, adding extra points of articulation, swappable effect parts, and interchangeable hands and faces so a single figure can recreate several signature moves.
The line is numbered, and its roster spans both Western comics and Japanese anime, including:
- Marvel and DC Comics (Deadpool, Spider-Man, Batman, and more)
- My Hero Academia (Izuku Midoriya, Katsuki Bakugo)
- One-Punch Man (Saitama, Genos, Silverfang)
- Attack on Titan, Dandadan, and Street Fighter 6
- Studio Ghibli's Nausicaä of the Valley of the Wind
Revoltech vs figma vs S.H.Figuarts: how Kaiyodo compares
Revoltech is one of the three articulated figure lines collectors compare most. The short version: Revoltech prioritizes a locking, poseable joint and effect-heavy action; figma leans toward natural anime proportions; and S.H.Figuarts targets fine detail and realism. Here is how they line up.
| Line | Maker | Signature joint | Best for |
|---|---|---|---|
| Revoltech / Amazing Yamaguchi | Kaiyodo | Revolver Joint (ratcheting) | Dynamic, held action poses |
| figma | Max Factory / Good Smile | Ball joints | Natural anime posing |
| S.H.Figuarts | Bandai | Hybrid ball and ratchet | Fine detail and realism |
None of the three is strictly "better." If you want a figure that snaps into a mid-air kick and stays there, Revoltech is built for exactly that. If you prefer quiet, natural standing poses, figma or S.H.Figuarts may suit you more. For the full breakdown, see our guides to Nendoroid vs figma, S.H.Figuarts, and Max Factory, the figma maker.
What else does Kaiyodo make?
Revoltech is the headline, but Kaiyodo's catalog is much wider. Beyond articulated action figures, the company is known for several other formats:
- Capsule and nature figures — highly detailed animal, fish, and dinosaur models sold through capsule (gashapon) machines
- Sofubi (soft vinyl) toys — released under lines such as Sofvi Toy Box
- Garage kits — unpainted resin model kits, the format Kaiyodo grew up on
- Licensed project lines — including Evangelion Evolution and the KT Project
That range is why Kaiyodo is treated as a full-spectrum figure company rather than a single-line brand, sitting alongside makers whose scale and prize figures fill the rest of a collector's shelf.
How to spot an authentic Kaiyodo Revoltech
Kaiyodo's popularity makes it a frequent bootleg target, especially the Amazing Yamaguchi Deadpool and One-Punch Man figures. A few quick checks help:
- Genuine Revolver Joints ratchet with a firm, even click; bootleg joints tend to feel loose or gritty.
- Official boxes use clean printing, carry the Kaiyodo and Revoltech logos, and label the numbered "Amazing Yamaguchi No.xxx" entry.
- Kaiyodo includes spare Revolver Joint parts and effect pieces; missing accessories are a red flag.
Buying from a seller that sources directly from Japan is the simplest safeguard. For a full walkthrough, read our guide on how to spot a fake anime figure.
Is a Kaiyodo figure worth it?
For a collector who displays figures in action poses, Kaiyodo is one of the safest picks on the market. The Revolver Joint is durable, forgiving, and designed to be re-posed many times, so an Amazing Yamaguchi figure earns its shelf space through play value as much as looks. Standard Revoltech releases are an affordable way to try the system, while the numbered Amazing Yamaguchi line is the premium tier worth saving for.
The trade-off is aesthetic. Because the joints are visible and mechanical, a static Revoltech figure standing straight can look busier than a seamless scale figure. If your shelf is built around still, elegant display pieces, a scale figure may photograph better; if it is built around dynamic dioramas, Kaiyodo wins.
Frequently asked questions
Who makes Revoltech and Amazing Yamaguchi?
Both are made by Kaiyodo, the Osaka-based figure manufacturer founded in 1964. Amazing Yamaguchi is a premium sub-line within the wider Revoltech family.
Is Amazing Yamaguchi the same as Revoltech?
Not quite. Amazing Yamaguchi is part of Revoltech, but it is the higher-end tier — more articulation points, more effect parts, and a focus on comic and anime hero characters. Standard Revoltech releases are simpler and usually cheaper.
When did Amazing Yamaguchi start?
The Amazing Yamaguchi line launched in 2016 with No.001 Deadpool. It has since grown into a numbered series covering Marvel, DC, and Japanese anime characters.
Are Kaiyodo Revoltech figures good for beginners?
Yes, with one caveat. The Revolver Joint holds poses well and is hard to break, which is beginner-friendly, but the ratcheting motion feels different from ball joints and takes a moment to get used to. Move slowly until you feel the click before forcing a pose.
Where can I buy Kaiyodo figures outside Japan?
Many Amazing Yamaguchi releases are Japan-market items that reach overseas collectors through importers and shops that ship internationally. Buying from a store that stocks directly from Japan keeps you clear of the bootlegs that circulate on open marketplaces and gets you the genuine numbered release.
Where to start collecting
Kaiyodo's Amazing Yamaguchi line includes some of the most sought-after My Hero Academia action figures out there, from Izuku Midoriya to Katsuki Bakugo. If a hero-anime character is your entry point, that is a natural place to begin.
Browse Akibato's in-stock My Hero Academia figures, shipped worldwide from Japan, to see what is available now.