Asahi Chemical Polyflex Ltd.

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USPTO Granted Patents = 6

Forward Citations = 108

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5 inventors (with patents filed for the assignee):

Kiyoshi Nakashima (4 out of 4 patents)

Hisao Kai (4 out of 9 patents)

Isao Toshima (1 out of 1 patent)

4. Eiji Hattori (1 out of 3 patents)

5. Mitsuji Ebara (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 5141795 - Laminated film for forming an easily openable tightly sealed bag (1992-08-25),

2. 5038547 - Method for producing an easily openable tightly sealed bag (1991-08-13),

3. 4994128 - Method for manufacturing film rolls (1991-02-19),

4. 4977807 - Slit imparting device for forming through cuts in a plastic film (1990-12-18),

5. 4919272 - Easily openable tightly sealed bag (1990-04-24),

6. 4746574 - Antistatic sheeting (1988-05-24),

Company Overview

Asahi Chemical Polyflex Ltd. is a leading manufacturer of high-quality plastic films and sheets. With state-of-the-art facilities and a focus on innovation, we provide innovative solutions to a wide range of industries including packaging, automotive, and healthcare. Our products are known for their durability, clarity, and performance, making us a trusted partner for businesses worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#2,469 in Tokyo

#5,990 in Japan

Tokyo, Japan