Growing community of inventors

Kanagawa, Japan

Takashi Ohkuma

Average Co-Inventor Count = 5.27

ph-index = 3

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 = 149

Takashi OhkumaYasuhiro Sato (2 patents)Takashi OhkumaSadao Takahashi (2 patents)Takashi OhkumaToshiyuki Furuta (2 patents)Takashi OhkumaYasuhiro Ono (2 patents)Takashi OhkumaTomohiko Beppu (2 patents)Takashi OhkumaHirofumi Horikawa (2 patents)Takashi OhkumaNaoki Kozuka (2 patents)Takashi OhkumaSatoshi Suga (2 patents)Takashi OhkumaTakao Inoue (1 patent)Takashi OhkumaHiroki Fukuoka (1 patent)Takashi OhkumaKatsuhiko Nuno (1 patent)Takashi OhkumaSatoshi Arai (1 patent)Takashi OhkumaTetsuya Hashimoto (1 patent)Takashi OhkumaHideo Sakurai (1 patent)Takashi OhkumaNobuyoshi Sugiyama (1 patent)Takashi OhkumaSatoru Tsutsui (1 patent)Takashi OhkumaShigeyuki Kawamura (1 patent)Takashi OhkumaTakanobu Mimura (1 patent)Takashi OhkumaTakayuki Toba (1 patent)Takashi OhkumaTakashi Ohkuma (5 patents)Yasuhiro SatoYasuhiro Sato (65 patents)Sadao TakahashiSadao Takahashi (57 patents)Toshiyuki FurutaToshiyuki Furuta (42 patents)Yasuhiro OnoYasuhiro Ono (15 patents)Tomohiko BeppuTomohiko Beppu (15 patents)Hirofumi HorikawaHirofumi Horikawa (10 patents)Naoki KozukaNaoki Kozuka (7 patents)Satoshi SugaSatoshi Suga (6 patents)Takao InoueTakao Inoue (90 patents)Hiroki FukuokaHiroki Fukuoka (29 patents)Katsuhiko NunoKatsuhiko Nuno (16 patents)Satoshi AraiSatoshi Arai (15 patents)Tetsuya HashimotoTetsuya Hashimoto (13 patents)Hideo SakuraiHideo Sakurai (9 patents)Nobuyoshi SugiyamaNobuyoshi Sugiyama (5 patents)Satoru TsutsuiSatoru Tsutsui (4 patents)Shigeyuki KawamuraShigeyuki Kawamura (3 patents)Takanobu MimuraTakanobu Mimura (3 patents)Takayuki TobaTakayuki Toba (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (5 from 28,544 patents)

2. Shinko Electric Company, Ltd. (1 from 227 patents)


5 patents:

1. 7973960 - Document processing system

2. 7760218 - Information recording apparatus and information recording method

3. 7489415 - Document processing system

4. 5815205 - External communication interface for a digital camera

5. 5057925 - Still picture recorder utilizing a switch controlled timer

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/7/2025
Loading…