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Iwaki Co., Ltd.

USPTO Granted Patents = 37

EPO Patents = 12

Trademarks = 2

Forward Citations = 442

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55 inventors (with patents filed for the assignee):

Toshiki Oniduka (9 out of 9 patents)

Hiroyuki Onuma (4 out of 4 patents)

Toshinori Yanagihara (3 out of 3 patents)

4. Tsuyoshi Watanabe (3 out of 3 patents)

5. Tsutomu Sawada (3 out of 3 patents)

6. Kazuo Okada (3 out of 3 patents)

7. Yoshiaki Fujinaka (3 out of 3 patents)

8. Kazuhiko Sato (3 out of 3 patents)

9. Norishige Hirakawa (3 out of 3 patents)

10. Takuya Seki (3 out of 3 patents)

11. Toshiaki Kamei (3 out of 3 patents)

12. Shinichirou Koreeda (3 out of 3 patents)

13. Hiroyuki Tanabe (2 out of 2 patents)

14. Yoshio Ogawa (2 out of 2 patents)

15. Mikio Mizukoshi (2 out of 2 patents)

37 patents: Sort by Forward Citations

1. 12467452 - Mounting structure for diaphragm and retainer (2025-11-11),

2. 12352279 - Rotary drive device and pump (2025-07-08),

3. 12345270 - Pump (2025-07-01),

4. 11876431 - Magnetic bearing, drive device equipped with the same, and pump (2024-01-16),

5. 11313365 - Reciprocating pump designed for preventing valves from being assembled erroneously (2022-04-26),

6. 11313362 - Tubephragm pump (2022-04-26),

7. 11105321 - Plunger pump having a rotatable plunger with cut face disposed in a cylinder wherein the cylinder includes a main body and a spacer section with the spacer section having a greater length in an axial direction than the maximum stroke length of the plunger (2021-08-31),

8. 11098711 - Pump device (2021-08-24),

9. 10941868 - Valve seat and valve structure (2021-03-09),

10. 10890190 - Magnetic pump (2021-01-12),

11. 10711779 - Plunger pump (2020-07-14),

12. 10704547 - Volume pump including a bellows and a suction valve and a discharge valve wherein the valves comprise a valve seat and a valve body and wherein a fixed section of the valve body includes a communicating flow path (2020-07-07),

13. 10550835 - Duplex reciprocating pump (2020-02-04),

14. 9239047 - Bellows pump (2016-01-19),

15. 8288906 - Maglev motor and pump (2012-10-16),

Iwaki Co., Ltd. is a global leader in the manufacturing and distribution of high-performance fluid control equipment. With over 60 years of experience, Iwaki provides innovative solutions for various industries including chemical, pharmaceutical, water treatment, and electronics. Their extensive range of products includes pumps, valves, filtration systems, and controllers. Iwaki is committed to delivering reliable and efficient solutions, backed by cutting-edge technology and exceptional customer support.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

37 Patents

#847 in Tokyo

#2,014 in Japan

#17,726 in the World

Iwaki Co., Ltd.

Forward Citations = 442

55 inventors:

Toshiki Oniduka (9 out of 9 patents)

Hiroyuki Onuma (4 out of 4 patents)

Toshinori Yanagihara (3 out of 3 patents)

4. Tsuyoshi Watanabe (3 out of 3 patents)

5. Tsutomu Sawada (3 out of 3 patents)

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