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Forward Citations = 154

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5 inventors (with patents filed for the assignee):

Masanobu Nakamura (5 out of 6 patents)

Fukazawa Kazuhito (1 out of 1 patent)

Takanosuke Ohki (1 out of 1 patent)

4. Kazuhito Fukazawa (1 out of 1 patent)

5. Kuzuhito Fukazawa (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 5033593 - Shock absorbing member for car body (1991-07-23),

2. 4928509 - Method for manufacturing a pipe with projections (1990-05-29),

3. 4882825 - Method of connecting a tubular member with an annular member (1989-11-28),

4. 4864978 - Manifold and manufacturing method thereof (1989-09-12),

5. 4840053 - Method for manufacturing a pipe with projections (1989-06-20),

6. 4831824 - Manifold and manufacturing method thereof (1989-05-23),

7. 4827585 - Cam shaft manufacturing method and device used therein (1989-05-09),

8. 4820241 - Tubular transmission shaft (1989-04-11),

9. 4598451 - Method of producing a rack from pipe material and a rack thus produced (1986-07-08),

Kokan Kako Co., Ltd. is a leading manufacturer of high-quality packaging materials in Japan. With over 20 years of experience, we specialize in producing innovative and eco-friendly solutions for various industries. Our products range from food packaging to industrial materials, and we are committed to delivering exceptional quality and service to our customers.

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USPTO Data Jan 1 1976 - Dec 16 2025

9 Patents

#61 in Yokohama

#4,574 in Japan

Yokohama, Japan

Kokan Kako Co., Ltd.