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Nippon Seisen Co., Ltd.

USPTO Granted Patents = 15

EPO Patents = 3

Trademarks = 2

Forward Citations = 302

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26 inventors (with patents filed for the assignee):

Hideomi Ishibe (7 out of 7 patents)

Masaru Ichikawa (3 out of 12 patents)

Yoshinori Tanimoto (3 out of 5 patents)

4. Tsuneo Akiura (3 out of 3 patents)

5. Kiyohito Ishida (1 out of 35 patents)

6. Takayuki Akizuki (1 out of 1 patent)

7. Takayuki Seo (1 out of 1 patent)

8. Junichiro Oboshi (1 out of 1 patent)

9. Naoyuki Kawahata (1 out of 1 patent)

10. Shoji Ichikawa (1 out of 1 patent)

11. Hiroyuki Shiga (1 out of 1 patent)

12. Hiroyasu Taga (1 out of 1 patent)

13. Jotaro Kishimoto (1 out of 7 patents)

14. Teruo Hashimoto (1 out of 1 patent)

15. Yukoh Yamada (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 9476474 - Copper alloy wire and copper alloy spring (2016-10-25),

2. 9180438 - Wire catalyst for hydrogenation/dehydrogenation reaction and manufacturing method therefor (2015-11-10),

3. 8709967 - Wire catalyst for hydrogenation/dehydrogenation reaction and manufacturing method therefor (2014-04-29),

4. 8568665 - Catalyst structure and hydrogenation/dehydrogenation reaction module using the same catalyst structure (2013-10-29),

5. 8561881 - Developed object for building packing box and the packing box (2013-10-22),

6. 8460482 - Heat-resistant alloy spring and Ni-based alloy wire therefor (2013-06-11),

7. 8226751 - Composite membrane material for hydrogen separation and element for hydrogen separation using the same (2012-07-24),

8. 6355082 - Metal filter (2002-03-12),

9. 5492623 - Laminated filter material, its fabricating method and filter using a (1996-02-20),

10. 5230348 - Guide wire for a catheter (1993-07-27),

11. 4830262 - Method of making titanium-nickel alloys by consolidation of compound (1989-05-16),

12. 4662915 - Powder-air separator for use in a powder filling apparatus (1987-05-05),

13. 4377409 - Stainless steel short fiber and process for preparing the same (1983-03-22),

14. 4122015 - Fortified metal filter and its preparative procedure (1978-10-24),

15. 4044447 - Method of simultaneously drawing a number of wire members (1977-08-30),

Nippon Seisen Co., Ltd. is a leading manufacturer and supplier of high-quality specialty steel products in Japan. With over 50 years of experience, the company has established a strong reputation for its innovative solutions and superior customer service. Nippon Seisen's product range includes stainless steel, nickel alloys, titanium, and other specialty metals, which are used in various industries such as aerospace, automotive, and electronics. The company is committed to quality, innovation, and sustainability in all its operations.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

15 Patents

#318 in Osaka

#3,367 in Japan

#38,742 in the World

Nippon Seisen Co., Ltd.

Forward Citations = 302

26 inventors:

Hideomi Ishibe (7 out of 7 patents)

Masaru Ichikawa (3 out of 12 patents)

Yoshinori Tanimoto (3 out of 5 patents)

4. Tsuneo Akiura (3 out of 3 patents)

5. Kiyohito Ishida (1 out of 35 patents)

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