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Hiraoka & Co., Ltd.

USPTO Granted Patents = 13

EPO Patents = 1

Trademarks = 1

Forward Citations = 352

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18 inventors (with patents filed for the assignee):

Tsutomu Obayashi (8 out of 8 patents)

Kazuhide Ino (5 out of 5 patents)

Hideyuki Hiraoka (3 out of 3 patents)

4. Yoshiji Hiraoka (3 out of 3 patents)

5. Shinobu Watanabe (3 out of 3 patents)

6. Saburo Baba (3 out of 3 patents)

7. Kenji Suzuki (1 out of 133 patents)

8. Sei Yamasaki (1 out of 1 patent)

9. Takamasa Nakajima (1 out of 1 patent)

10. Chitomi Shimizu (1 out of 1 patent)

11. Shinzo Nakai (1 out of 1 patent)

12. Endou Mituo (1 out of 1 patent)

13. Obayashi Tsutomu (1 out of 1 patent)

14. Tsutomo Obayashi (1 out of 1 patent)

15. Manabu Imoto (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 7287930 - Vehicle impact attenuator (2007-10-30),

2. 6589633 - Ink-receptive fibrous material for advertisement (2003-07-08),

3. 4749625 - Amorphous metal laminate sheet (1988-06-07),

4. 4714650 - Stainproof, flame-resistant composite sheet material (1987-12-22),

5. 4696830 - Process for preparation of water-proof sheets (1987-09-29),

6. 4686135 - Composite sheet material (1987-08-11),

7. 4678681 - Process for preparation of water-proof sheets (1987-07-07),

8. 4410575 - Lap welding method for textile fabrics (1983-10-18),

9. 4347284 - White cover sheet material capable of reflecting ultraviolet rays (1982-08-31),

10. 4324827 - Water-proof, fuse-bonding fabric (1982-04-13),

11. 4312907 - Water-impermeable sheet material (1982-01-26),

12. 4298645 - Tarpaulins having great tearing strength (1981-11-03),

13. 4295440 - Apparatus for continuously coating a sheet material concurrently with a (1981-10-20),

Hiraoka & Co., Ltd. is a leading manufacturer of industrial textiles and materials in Japan. With over 70 years of experience, the company offers a wide range of products including synthetic fibers, fabrics, and interior materials for various industries such as automotive, construction, and healthcare. Hiraoka & Co., Ltd. is known for its commitment to quality, innovation, and customer satisfaction.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

13 Patents

#22 in Ibaraki

#3,655 in Japan

#43,615 in the World

Hiraoka & Co., Ltd.

Forward Citations = 352

18 inventors:

Tsutomu Obayashi (8 out of 8 patents)

Kazuhide Ino (5 out of 5 patents)

Hideyuki Hiraoka (3 out of 3 patents)

4. Yoshiji Hiraoka (3 out of 3 patents)

5. Shinobu Watanabe (3 out of 3 patents)

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