Growing community of inventors

Tokyo, Japan

Koki Koiwa

Average Co-Inventor Count = 3.73

ph-index = 5

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 = 192

Koki KoiwaTakuji Masuda (3 patents)Koki KoiwaToshihiro Nagoshi (3 patents)Koki KoiwaTakayuki Kazama (3 patents)Koki KoiwaRyo Ikawa (3 patents)Koki KoiwaHiroshi Kataoka (2 patents)Koki KoiwaTakashi Fujimura (2 patents)Koki KoiwaMakoto Osaki (2 patents)Koki KoiwaNaotake Nishimura (2 patents)Koki KoiwaTakeshi Iwasaki (1 patent)Koki KoiwaHiroshi Masui (1 patent)Koki KoiwaSaori Nishikawa (1 patent)Koki KoiwaTakashi Isowaki (1 patent)Koki KoiwaJunichi Yamanaka (1 patent)Koki KoiwaRingo Manabe (1 patent)Koki KoiwaYukio Tsuji (1 patent)Koki KoiwaKoki Koiwa (7 patents)Takuji MasudaTakuji Masuda (4 patents)Toshihiro NagoshiToshihiro Nagoshi (4 patents)Takayuki KazamaTakayuki Kazama (3 patents)Ryo IkawaRyo Ikawa (3 patents)Hiroshi KataokaHiroshi Kataoka (47 patents)Takashi FujimuraTakashi Fujimura (22 patents)Makoto OsakiMakoto Osaki (6 patents)Naotake NishimuraNaotake Nishimura (2 patents)Takeshi IwasakiTakeshi Iwasaki (11 patents)Hiroshi MasuiHiroshi Masui (6 patents)Saori NishikawaSaori Nishikawa (5 patents)Takashi IsowakiTakashi Isowaki (1 patent)Junichi YamanakaJunichi Yamanaka (1 patent)Ringo ManabeRingo Manabe (1 patent)Yukio TsujiYukio Tsuji (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Sega Enterprises (6 from 145 patents)

2. Sega Enterprises, Ltd. (1 from 264 patents)


7 patents:

1. 6917371 - Game device, picture data forming method and medium

2. 6767286 - Game device, picture data forming method and medium

3. 6417854 - Image processing system

4. 6234901 - Game device, picture data and flare forming method

5. 6149519 - Electronic game device

6. 5971853 - Object direction control method and apparatus

7. 5766079 - Object direction control method and apparatus

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as of
12/24/2025
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