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Toyo Boseki Kabushiki Kaisha

USPTO Granted Patents = 789

CIPO Patents = 8

EPO Patents = 57

Trademarks = 24

Forward Citations = 10,523

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1,135 inventors (with patents filed for the assignee):

Norimi Tabota (29 out of 37 patents)

Yoshihisa Kawamura (28 out of 31 patents)

Katsuya Ito (26 out of 33 patents)

4. Katsuhiko Nose (26 out of 26 patents)

5. Yoshiaki Nishiya (23 out of 26 patents)

6. Hiroshi Nagano (20 out of 22 patents)

7. Katsuaki Kuze (19 out of 21 patents)

8. Naonobu Oda (17 out of 17 patents)

9. Masao Kitabayashi (17 out of 18 patents)

10. Atsushi Sogabe (17 out of 20 patents)

11. Shigenori Emi (17 out of 18 patents)

12. Tsutomu Isaka (17 out of 18 patents)

13. Yasushi Sasaki (15 out of 67 patents)

14. Yozo Yamada (15 out of 15 patents)

15. Chikao Morishige (15 out of 17 patents)

Core Competencies:

Gas-Barrier Multilayer Film

Liquid Crystal Display Device

Flexographic Printing Plate

Polyester Film

Porous Hollow Fiber Membrane

Nerve Regeneration-Inducing Tube

Transparent Conductive Film

Heat-Shrinkable Polyester Film

Polyamide Imide Fiber

Anisotropic Light-Diffusing Film

Low-Temperature Curable Conductive Paste

Polymeric Porous Hollow Fiber Membrane

789 patents: Sort by Forward Citations

1. 10457788 - Gas-barrier multilayer film (2019-10-29),

2. 10054816 - Method for improving visibility of liquid crystal display device, and liquid crystal display device using same (2018-08-21),

3. 9937524 - Method for manufacturing flexographic printing plate and flexographic printing plate (2018-04-10),

4. 9931822 - Polyester film, use thereof and metal laminated sheet made of said film, and metal can and metal lid made of the sheet (2018-04-03),

5. 9795932 - Porous hollow fiber membrane and a porous hollow fiber membrane for the treatment of a protein-containing liquid (2017-10-24),

6. 9687592 - Method for the manufacture of nerve regeneration-inducing tube (2017-06-27),

7. 9640689 - Polyester film for the protection of back surfaces of solar cells (2017-05-02),

8. 9605122 - Gas-barrier multilayer film (2017-03-28),

9. 9546446 - Highly functional polyethylene fibers, woven or knit fabric, and cut-resistant glove (2017-01-17),

10. 9540678 - Method for highly sensitive detection of protein-protein interaction (2017-01-10),

11. 9492794 - Porous hollow fiber membrane for treatment of protein-containing liquid (2016-11-15),

12. 9394638 - Polyimide nonwoven fabric and process for production thereof (2016-07-19),

13. 9352508 - Thermally shrinkable polyester film, method of manufacturing the same, and packed product using the same (2016-05-31),

14. 9290625 - Aqueous resin composition and method of producing the same (2016-03-22),

15. 9133300 - Resin composition for adhesive, adhesive containing resin composition for adhesive, adhesive sheet containing resin composition for adhesive, and printed wiring board including adhesive or adhesive sheet as adhesive layer (2015-09-15),

TOYO BOSEKI KABUSHIKI KAISHA (Toyo Boseki Co., Ltd.) is a Japanese chemical company specializing in the production and distribution of fibers, plastics, and advanced materials. Founded in 1928, Toyo Boseki has established itself as a leading global manufacturer in various industries, including textiles, automotive, electronics, and healthcare. With a focus on innovation and sustainability, Toyo Boseki continues to contribute to the advancement of society through its high-quality products and solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

789 Patents

#33 in Osaka

#263 in Japan

#1,237 in the World

Toyo Boseki Kabushiki Kaisha

Forward Citations = 10,523

1,135 inventors:

Norimi Tabota (29 out of 37 patents)

Yoshihisa Kawamura (28 out of 31 patents)

Katsuya Ito (26 out of 33 patents)

4. Katsuhiko Nose (26 out of 26 patents)

5. Yoshiaki Nishiya (23 out of 26 patents)

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