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Teisan Kabushiki Kaisha

USPTO Granted Patents = 28

Forward Citations = 230

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27 inventors (with patents filed for the assignee):

Takao Yamamoto (8 out of 14 patents)

Shinji Tomita (7 out of 28 patents)

Takashi Nagamura (7 out of 14 patents)

4. Shigeyoshi Nozawa (3 out of 4 patents)

5. Kazuo Yokogi (3 out of 12 patents)

6. Nobuyoshi Aoki (3 out of 5 patents)

7. Eiichi Yoshida (3 out of 5 patents)

8. Issei Nakata (3 out of 4 patents)

9. Hideki Ueda (3 out of 4 patents)

10. Akira Hongo (3 out of 4 patents)

11. Toshimitsu Suzuki (3 out of 4 patents)

12. Hidekazu Ina (2 out of 3 patents)

13. Yoshihiro Ibaraki (2 out of 3 patents)

14. Takayuki Makioka (2 out of 2 patents)

15. Yukinobu Nishikawa (2 out of 2 patents)

28 patents: Sort by Forward Citations

1. 6224677 - Gas recovery unit utilizing dual use of gas (2001-05-01),

2. 5958138 - Gas recovery unit (1999-09-28),

3. 5921107 - Oxygen production method related to a nitrogen generator unit (1999-07-13),

4. 5899225 - Air tube connection state detecting apparatus (1999-05-04),

5. 5892207 - Heating and cooling apparatus for reaction chamber (1999-04-06),

6. 5891404 - Exhaust gas treatment unit (1999-04-06),

7. 5832746 - Ultra-high purity nitrogen trifluoride production method, and unit (1998-11-10),

8. 5806340 - High purity nitrogen generator unit and method (1998-09-15),

9. 5803795 - Method of treating inner surface of high-pressure gas vessel (1998-09-08),

10. 5800792 - Exhaust gas treatment unit and method (1998-09-01),

11. 5783162 - Argon purification process (1998-07-21),

12. 5778698 - Ultra high purity nitrogen and oxygen generator unit (1998-07-14),

13. 5743112 - Ultra high purity nitrogen and oxygen generator unit (1998-04-28),

14. 5685169 - Method and apparatus for preparing high purity hydrogen bromide (1997-11-11),

15. 5682761 - Ultra-high purity nitrogen generating method and unit (1997-11-04),

Teisan Kabushiki Kaisha is a Japanese company engaged in the production, distribution, and sale of industrial machinery and equipment. Their product range includes compressors, pumps, blowers, heat exchangers, and various other industrial equipment. With over 50 years of experience, Teisan has established its reputation as a trusted supplier in the global market. They strive to provide high-quality products, innovative solutions, and excellent customer service.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

28 Patents

#970 in Tokyo

#2,357 in Japan

#22,560 in the World

Teisan Kabushiki Kaisha

Forward Citations = 230

27 inventors:

Takao Yamamoto (8 out of 14 patents)

Shinji Tomita (7 out of 28 patents)

Takashi Nagamura (7 out of 14 patents)

4. Shigeyoshi Nozawa (3 out of 4 patents)

5. Kazuo Yokogi (3 out of 12 patents)

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