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C.i. Kasei Company, Limited

USPTO Granted Patents = 25

EPO Patents = 3

Trademarks = 7

Forward Citations = 311

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47 inventors (with patents filed for the assignee):

Michiyoshi Terauchi (4 out of 4 patents)

Hiroharu Sasayama (4 out of 4 patents)

Kazuhiro Takasaki (4 out of 4 patents)

4. Hiroshi Fushimi (3 out of 5 patents)

5. Hiroshi Harima (3 out of 6 patents)

6. Yoshihiro Yoshioka (3 out of 4 patents)

7. Hiroshi Shinjo (2 out of 7 patents)

8. Masayoshi Nakajima (2 out of 6 patents)

9. Kengo Nishiyama (2 out of 2 patents)

10. Kouji Kudou (2 out of 2 patents)

11. Itsuki Yamamoto (2 out of 2 patents)

12. Kazuma Mitsuyama (2 out of 2 patents)

13. Takahide Kameda (2 out of 2 patents)

14. Akira Hori (2 out of 2 patents)

15. Kenji Ekuan (2 out of 16 patents)

25 patents: Sort by Forward Citations

1. 9267008 - Heat-shrinkable white film (2016-02-23),

2. 8732913 - Fastener and bag having fastener (2014-05-27),

3. 8481135 - Engaging member and packing bag with engaging member (2013-07-09),

4. 8088635 - Vertical geometry light emitting diode package aggregate and production method of light emitting device using the same (2012-01-03),

5. 7999277 - Light emitting device and production method of same (2011-08-16),

6. 7625516 - Method for manufacturing sheet molded body and insert molded body (2009-12-01),

7. D593967 - Light emitting device (2009-06-09),

8. 6984440 - Decorative sheet and method for producing the same (2006-01-10),

9. 5989381 - Method for adhesive bonding of an overlay film to an acrylic resin board (1999-11-23),

10. 5405681 - Decorative material including a transfer sheet having an antistatic (1995-04-11),

11. 5390939 - Joint sealing member (1995-02-21),

12. 5290844 - Water-swellable adhesive water stop (1994-03-01),

13. 5290045 - Seal for joint, and method of installing same seal (1994-03-01),

14. 5172919 - Appliance for preventing water from leaking through joint (1992-12-22),

15. 5104263 - Underground pipe for a thrust boring method and a connecting (1992-04-14),

C.i. Kasei Company, Limited is a leading chemical manufacturer specializing in innovative solutions for a wide range of industries. With a strong focus on research and development, the company offers high-quality products and reliable services to meet the needs of its customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

25 Patents

#1,047 in Tokyo

#2,517 in Japan

#24,910 in the World

C.i. Kasei Company, Limited

Forward Citations = 311

47 inventors:

Michiyoshi Terauchi (4 out of 4 patents)

Hiroharu Sasayama (4 out of 4 patents)

Kazuhiro Takasaki (4 out of 4 patents)

4. Hiroshi Fushimi (3 out of 5 patents)

5. Hiroshi Harima (3 out of 6 patents)

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