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For the Inventor, By the Inventor

Aichi, Japan

Inax Corporation


USPTO Granted Patents = 111

% Expired Patents = 9.9



Trademarks = 1

Forward Citations = 2,108

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233 inventors (with patents filed for the assignee):

goldMedal Shigeru Sakakibara (9 out of 9 patents)

silverMedal Shiro Saito (9 out of 10 patents)

bronzeMedal Kazushige Murata (9 out of 9 patents)

4.  Ryuichi Kawamoto (7 out of 8 patents)

5.  Yasuhiro Shirai (5 out of 6 patents)

6.  Kenichi Ito (5 out of 7 patents)

7.  Koji Miwa (5 out of 5 patents)

8.  Katsunori Tomita (5 out of 7 patents)

9.  Masataka Mizutani (5 out of 6 patents)

10.  Takeshi Ito (5 out of 5 patents)

11.  Touichirou Matsuura (5 out of 12 patents)

12.  Hiroaki Kuno (4 out of 4 patents)

13.  Shigeo Suda (4 out of 4 patents)

14.  Osamu Kodama (4 out of 4 patents)

15.  Takumi Tanikawa (4 out of 4 patents)


Core Competencies:
Toilet Bowl
Bidet Toilet Seat
Tankless Toilet
Faucet
Water Spouting Device
Liquid Control Valve
Automatic Faucet
Sewage Treatment
Water Purifier
Ceramic Product
Human Body Sensing
Water Hammer Absorber

111 patents:

1. D638525 - Toilet bowl (2011-05-24),
2. D638520 - Faucet with shower head (2011-05-24),
3. D632766 - Lavatory sink (2011-02-15),
4. D629071 - Spout with sensor (2010-12-14),
5. D624630 - Spout with sensor (2010-09-28),
6. D608426 - Toilet bowl (2010-01-19),
7. 7594282 - Western-style toilet facility (2009-09-29),
8. 7552879 - Water spouting device (2009-06-30),
9. D594945 - Toilet seat with bidet (2009-06-23),
10. D594536 - Toilet seat with bidet (2009-06-16),
11. 7488442 - Glass layered ceramic product (2009-02-10),
12. 7392550 - Silencer and water supply device (2008-07-01),
13. 7305720 - Toilet seat device (2007-12-11),
14. 7173201 - Remote controller (2007-02-06),
15. 7069604 - Tankless western-style flush toilet (2006-07-04),
Inax Corporation, headquartered in Aichi, Japan, specializes in the development and manufacturing of innovative bathroom fixtures. The company is renowned for its advanced toilet solutions, including bidet toilet seats and tankless toilets, which emphasize hygiene and water efficiency. Inax also produces a range of faucets and water spouting devices, alongside liquid control valves and automatic faucets, contributing to modern plumbing and sewage treatment technologies. Their commitment to quality and design enhances both functionality and aesthetics in bathroom environments.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Inax Corporation
111 Patents

#22 in Aichi

#1,054 in Japan

#7,097 in the World

Aichi, JP
Aichi, Japan

Inax Corporation

Forward Citations = 2,108

233 inventors:

goldMedal Shigeru Sakakibara (9 out of 9 patents)

silverMedal Shiro Saito (9 out of 10 patents)

bronzeMedal Kazushige Murata (9 out of 9 patents)

4.  Ryuichi Kawamoto (7 out of 8 patents)

5.  Yasuhiro Shirai (5 out of 6 patents)

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