Neriki Valve Co., Ltd.

Calculating rank

USPTO Granted Patents = 6

% Expired Patents = 33.3

EPO Patents = 4

Forward Citations = 6

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7 inventors (with patents filed for the assignee):

Masaru Takeda (4 out of 9 patents)

Kazuyuki Miyata (3 out of 5 patents)

Akira Oi (2 out of 8 patents)

4. Shinji Maekawa (2 out of 3 patents)

5. Takashi Ejiri (1 out of 20 patents)

6. Mitsumasa Kagomoto (1 out of 3 patents)

7. Mari Shiotsuki (1 out of 3 patents)

8. Akifumi Yao (34 patents)

9. Isamu Mori (14 patents)

10. Kenji Tanaka (4 patents)

11. Tomonori Umezaki (11 patents)

12. Tatsuo Miyazaki (7 patents)

13. Tadayuki Kawashima (5 patents)

14. Takeda Masaru (0 patent)

15. Oi Akira (0 patent)

6 patents: Sort by Forward Citations

1. 11486512 - Opening and closing handle, and valve device (2022-11-01),

2. 11215290 - Non-return valve mechanism and one-way valve device (2022-01-04),

3. 11054845 - Flow direction restriction valve mechanism and valve device (2021-07-06),

4. 9683706 - Cylinder valve (2017-06-20),

5. 7111818 - Safety valve (2006-09-26),

6. 6932315 - Manual opening apparatus for a normally-closed valve (2005-08-23),

Company Overview

Neriki Valve Co., Ltd. is a leading manufacturer of industrial valves based in Japan. With over 30 years of experience, we specialize in designing and producing high-quality valves for various industries including oil and gas, chemical, and power generation. Our products are known for their reliability, durability, and performance, and we are committed to providing our customers with innovative valve solutions to meet their specific needs. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#102 in Hyogo

#5,990 in Japan

Hyogo, Japan

Neriki Valve Co., Ltd.

Forward Citations = 6

7 inventors:

Masaru Takeda (4 out of 9 patents)

Kazuyuki Miyata (3 out of 5 patents)

Akira Oi (2 out of 8 patents)

4. Shinji Maekawa (2 out of 3 patents)

5. Takashi Ejiri (1 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Neriki Valve Co., Ltd.. Retrieved from https://idiyas.com/company/neriki-valve-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

4 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]