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Tonen Sekiyukagaku K.k.

USPTO Granted Patents = 11

Forward Citations = 146

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24 inventors (with patents filed for the assignee):

Takashi Mikami (2 out of 27 patents)

Isao Baba (2 out of 9 patents)

Noboru Yamamoto (2 out of 45 patents)

4. Masayuki Yamazaki (2 out of 3 patents)

5. Masato Komatsu (2 out of 8 patents)

6. Yutaka Takado (2 out of 2 patents)

7. Yasushi Itaba (2 out of 11 patents)

8. Takayoshi Kondo (2 out of 5 patents)

9. Seiji Kagawa (2 out of 2 patents)

10. Takashi Nakayama (1 out of 7 patents)

11. Haruo Tsukuda (1 out of 1 patent)

12. Joichi Tabuchi (1 out of 1 patent)

13. Ichiro Sakamoto (1 out of 4 patents)

14. Yutaka Yoshifuji (1 out of 7 patents)

15. Minoru Izawa (1 out of 5 patents)

11 patents: Sort by Forward Citations

1. 5218036 - Shrinkable film from ethylene-vinyl acetate polymer talc and (1993-06-08),

2. 5185203 - Heat-sealable crosslinked oriented polyethylene film and production (1993-02-09),

3. 5123688 - Automobile bumper having smooth surface and manufactured by a blow (1992-06-23),

4. 5075152 - Polyethylene composite film and label (1991-12-24),

5. 5045620 - Oriented polyethylene film and production thereof (1991-09-03),

6. 4940270 - Automobile bumper (1990-07-10),

7. 4906683 - Thermoplastic elastomer composition (1990-03-06),

8. 4857230 - Stabilizing composition for polyolefins (1989-08-15),

9. 4824499 - Method for production of gas-pervious composite film (1989-04-25),

10. 4801651 - Method of manufacture of thermoplastic elastomer compounds (1989-01-31),

11. 4766159 - Process for producing polypropylene foam (1988-08-23),

Tonen Sekiyukagaku K.k. is a leading Japanese company specializing in petroleum and chemical products. With a focus on research and development, Tonen Sekiyukagaku K.k. provides high-quality products and services to a wide range of industries, including automotive, construction, and energy. The company is committed to innovation and sustainability in its operations.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

11 Patents

#1,591 in Tokyo

#4,039 in Japan

#50,159 in the World

Tonen Sekiyukagaku K.k.

Forward Citations = 146

24 inventors:

Takashi Mikami (2 out of 27 patents)

Isao Baba (2 out of 9 patents)

Noboru Yamamoto (2 out of 45 patents)

4. Masayuki Yamazaki (2 out of 3 patents)

5. Masato Komatsu (2 out of 8 patents)

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