Growing community of inventors

Kobe, Japan

Osamu Ohkuma

Average Co-Inventor Count = 8.00

ph-index = 1

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 = 0

Osamu Ohkuma ↔ Tetsuo Matsumura (1 patent)Osamu Ohkuma ↔ Toshio Ohzawa (1 patent)Osamu Ohkuma ↔ Yasuo Sugino (1 patent)Osamu Ohkuma ↔ Hiroshi Yoshimura (1 patent)Osamu Ohkuma ↔ Saburo Sawada (1 patent)Osamu Ohkuma ↔ Shun'ichi Yanai (1 patent)Osamu Ohkuma ↔ Akihiro Kawashima (1 patent)Osamu OhkumaOsamu Ohkuma (1 patent)Tetsuo MatsumuraTetsuo Matsumura (5 patents)Toshio OhzawaToshio Ohzawa (3 patents)Yasuo SuginoYasuo Sugino (3 patents)Hiroshi YoshimuraHiroshi Yoshimura (2 patents)Saburo SawadaSaburo Sawada (1 patent)Shun'ichi YanaiShun'ichi Yanai (1 patent)Akihiro KawashimaAkihiro Kawashima (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Kobe Seiko Sho (1 from 1,100 patents)

2. Mitsubishi Kasei Kogyo Kabushiki Kaisha (1 from 23 patents)

3. Idemitsu, Kosan Kabushiki-kaisha (1 from 3 patents)

4. Aziasekiyu Kabushiki Kaisha (1 from 1 patent)


1 patent:

1. 4714543 - Method of treating brown coal for liquefaction

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12/6/2025
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