CIPO Patents = 2

EPO Patents = 1

Forward Citations = 28

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32 inventors (with patents filed for the assignee):

Takeshi Nakamura (1 out of 63 patents)

Shinichi Watanabe (1 out of 53 patents)

Hiroshi Iizuka (1 out of 5 patents)

4. Eiich Hayano (1 out of 1 patent)

5. Yasunori Maekawa (1 out of 1 patent)

6. Jinyuan Chen (1 out of 10 patents)

7. Hiroyuki Arakawa (1 out of 5 patents)

8. Shintaro Nishimura (1 out of 9 patents)

9. Sousuke Miyoshi (1 out of 2 patents)

10. Akiko Ohkubo (1 out of 1 patent)

11. Noriyuki Morikawa (1 out of 1 patent)

12. Yasuhiro Ogawa (1 out of 1 patent)

13. Masao Fukagawa (1 out of 1 patent)

14. Jyunko Zenkou (1 out of 1 patent)

15. Susumu Sato (1 out of 4 patents)

7 patents: Sort by Forward Citations

1. 12385047 - Transformed cell production method (2025-08-12),

2. 11898155 - Method for introducing molecule and composition containing inhibitor (2024-02-13),

3. 10201069 - High frequency power supply device and high frequency power supplying method (2019-02-05),

4. 7402435 - Method of transferring a selected molecule into a cell (2008-07-22),

5. 7132040 - Matching unit for semiconductor plasma processing apparatus (2006-11-07),

6. 6958630 - High-frequency detection method and high-frequency detection circuit (2005-10-25),

7. 6835346 - Method and apparatus for processing a linear groove to an air bag portion of a skin for a vehicle (2004-12-28),

Pearl Kogyo Co., Ltd. is a leading manufacturer of industrial automation equipment based in Japan. With over 50 years of experience, the company specializes in the design and production of high-quality hydraulic and pneumatic systems for various industries. Pearl Kogyo Co., Ltd. is committed to providing innovative solutions to meet the changing needs of its customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

7 Patents

#520 in Osaka

#5,307 in Japan

Osaka, Japan

Pearl Kogyo Co., Ltd.

Forward Citations = 28

32 inventors:

Takeshi Nakamura (1 out of 63 patents)

Shinichi Watanabe (1 out of 53 patents)

Hiroshi Iizuka (1 out of 5 patents)

4. Eiich Hayano (1 out of 1 patent)

5. Yasunori Maekawa (1 out of 1 patent)

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2 patents (CIPO):

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1 patent (EPO):

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