Growing community of inventors

Gifu, Japan

Takemasa Okumura

Average Co-Inventor Count = 2.55

ph-index = 2

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 = 11

Takemasa OkumuraSatoshi Yamamoto (7 patents)Takemasa OkumuraHideki Oshima (7 patents)Takemasa OkumuraKeiji Makino (7 patents)Takemasa OkumuraTakahiko Endo (7 patents)Takemasa OkumuraJun Jin (7 patents)Takemasa OkumuraKaho Hayashi (6 patents)Takemasa OkumuraMakoto Higashikozono (3 patents)Takemasa OkumuraHidetoshi Ishida (1 patent)Takemasa OkumuraYasuyuki Yamamoto (1 patent)Takemasa OkumuraMasaki Nasu (10 patents)Takemasa OkumuraTakemasa Okumura (10 patents)Satoshi YamamotoSatoshi Yamamoto (103 patents)Hideki OshimaHideki Oshima (11 patents)Keiji MakinoKeiji Makino (8 patents)Takahiko EndoTakahiko Endo (7 patents)Jun JinJun Jin (7 patents)Kaho HayashiKaho Hayashi (9 patents)Makoto HigashikozonoMakoto Higashikozono (97 patents)Hidetoshi IshidaHidetoshi Ishida (39 patents)Yasuyuki YamamotoYasuyuki Yamamoto (25 patents)Masaki NasuMasaki Nasu (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokai Chemical Industries, Ltd. (10 from 31 patents)

2. Sumitomo Riko Company Limited (9 from 341 patents)

3. Sumitomo Electric Industries, Limited (7 from 10,273 patents)

4. Sumitomo Wiring Systems, Limited (7 from 6,181 patents)

5. Autonetworks Technologies, Limited (7 from 2,114 patents)


10 patents:

1. 12455634 - Interior member

2. 12163653 - Decorative sheet and interior member

3. 11884194 - Armrest and seat with armrest

4. 11760244 - Armrest

5. 11717090 - Armrest and seat with armrest

6. 11325514 - Armrest

7. 11299078 - Armrest

8. 11266248 - Armrest

9. 11186211 - Armrest

10. 10327555 - Stay for headrest

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as of
1/10/2026
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