Growing community of inventors

Kobe, Japan

Hiroaki Koyama

Average Co-Inventor Count = 1.91

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 156

Hiroaki KoyamaShigeo Shimizu (10 patents)Hiroaki KoyamaIsao Kimura (3 patents)Hiroaki KoyamaMituru Sekiya (1 patent)Hiroaki KoyamaHiroaki Koyama (14 patents)Shigeo ShimizuShigeo Shimizu (10 patents)Isao KimuraIsao Kimura (9 patents)Mituru SekiyaMituru Sekiya (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kanebo, Limited (8 from 305 patents)

2. Nippon Kynol Inc. (5 from 7 patents)

3. Mitsubishi Chemical Industries Limited (2 from 614 patents)


14 patents:

1. 4598110 - Resin composition containing granular or powdery phenol-aldehyde resin

2. 4596845 - Resin composition containing granular or powdery phenol-aldehyde resin

3. 4558089 - Resin composition containing granular or powdery phenol-aldehyde resin

4. 4476277 - Resin composition containing granular or powdery phenol-aldehyde resin

5. 4466932 - Process for producing carbon articles

6. 4460730 - Composition containing a powder of an inorganic material

7. 4454298 - Granular or powdery phenol-aldehyde resin and process for production

8. 4414379 - Granular or powdery nitrogen-containing phenol-aldehyde copolymer resin

9. 4414378 - Granular or powdery phenol-formaldehyde resin and process for production

10. 4316969 - Cured novolak fiber-reinforced, chlorinated rubber molded articles

11. 4021410 - Melt-spun drawn or undrawn flame-resistant and antifusing cured

12. 4008304 - Process for producing cured phenolic filaments having improved

13. 3972959 - Process for preparing phenolic filaments

14. 3931386 - Process for producing drawn or undrawn flame-resistant, anti-fusing

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1/5/2026
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