logo

For the Inventor, By the Inventor

Aichi, Japan

Rinnai Corporation


USPTO Granted Patents = 200

% Expired Patents = 24.5



Trademarks = 2

Forward Citations = 665

Loading Chart...
Loading Chart...

141 inventors (with patents filed for the assignee):

goldMedal Takashi Ojiro (20 out of 20 patents)

silverMedal Takahiro Ono (14 out of 42 patents)

bronzeMedal Masaru Takeuchi (13 out of 42 patents)

4.  Kazuyuki Akagi (11 out of 11 patents)

5.  Hiroaki Higashijima (11 out of 12 patents)

6.  Masakazu Ando (10 out of 10 patents)

7.  Hideo Okamoto (9 out of 12 patents)

8.  Toshimitsu Nagasaka (9 out of 9 patents)

9.  Yoshikazu Kubo (9 out of 10 patents)

10.  Kazuya Hirota (7 out of 8 patents)

11.  Atsuhito Gama (7 out of 8 patents)

12.  Keiichi Ito (7 out of 33 patents)

13.  Tomoyuki Shimazu (6 out of 6 patents)

14.  Ikuro Adachi (6 out of 6 patents)

15.  Hiroyuki Yamada (6 out of 11 patents)


Core Competencies:
Water Heater
Heat Exchanger
Combustion Apparatus
Premixing Apparatus
Gas Manifold
Totally Aerated Combustion Burner
Blower Fan
Heat Source Device
Hot Water Supply Apparatus
Centrifugal Fan
Safety Valve
Flame Rod

200 patents:

1. 12741252 - Fine bubble generator, water heater, and dishwasher (2026-09-22),
2. 12663093 - Three-way valve (2026-06-23),
3. 12613055 - Hot water supply apparatus (2026-04-28),
4. 12611637 - Fine bubble generating nozzle (2026-04-28),
5. 12601478 - Combustion apparatus (2026-04-14),
6. 12578121 - Heat exchanger (2026-03-17),
7. 12565997 - Premixing apparatus (2026-03-03),
8. 12540778 - Heat exchanger (2026-02-03),
9. 12487035 - Heat exchanger (2025-12-02),
10. 12467624 - Premixing apparatus (2025-11-11),
11. 12313259 - Combustion apparatus (2025-05-27),
12. 12292189 - Rich-lean flame burner (2025-05-06),
13. 12292188 - Premixing apparatus (2025-05-06),
14. 12287091 - Fan apparatus (2025-04-29),
15. D1058780 - Water heater (2025-01-21),
Rinnai Corporation, headquartered in Aichi, Japan, specializes in advanced water heating technology. The company is renowned for its innovative solutions in the development and manufacturing of water heaters, heat exchangers, and combustion apparatuses. Rinnai's expertise extends to premixing apparatus, gas manifolds, and totally aerated combustion burners, positioning it as a leader in energy-efficient heating solutions. The organization is committed to enhancing comfort and convenience through cutting-edge technology in residential and commercial applications.
Profile summary based on public USPTO records.

logo

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Rinnai Corporation
200 Patents

#11 in Aichi

#697 in Japan

#4,216 in the World

Aichi, JP
Aichi, Japan

Rinnai Corporation

Forward Citations = 665

141 inventors:

goldMedal Takashi Ojiro (20 out of 20 patents)

silverMedal Takahiro Ono (14 out of 42 patents)

bronzeMedal Masaru Takeuchi (13 out of 42 patents)

4.  Kazuyuki Akagi (11 out of 11 patents)

5.  Hiroaki Higashijima (11 out of 12 patents)

Please report any incorrect information to [email protected]
Loading…