Growing community of inventors

Tokyo, Japan

Yukio Takegawa

Average Co-Inventor Count = 3.60

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 = 25

Yukio Takegawa ↔ Susumu Suzuka (1 patent)Yukio Takegawa ↔ Kenji Kagami (1 patent)Yukio Takegawa ↔ Akira Tsukada (1 patent)Yukio Takegawa ↔ Kazunori Shigemori (1 patent)Yukio Takegawa ↔ Tetuya Higuchi (1 patent)Yukio Takegawa ↔ Nobuyoshi Endo (1 patent)Yukio Takegawa ↔ Akira Tukada (1 patent)Yukio Takegawa ↔ Kenichi Nishio (1 patent)Yukio TakegawaYukio Takegawa (3 patents)Susumu SuzukaSusumu Suzuka (32 patents)Kenji KagamiKenji Kagami (18 patents)Akira TsukadaAkira Tsukada (14 patents)Kazunori ShigemoriKazunori Shigemori (8 patents)Tetuya HiguchiTetuya Higuchi (1 patent)Nobuyoshi EndoNobuyoshi Endo (1 patent)Akira TukadaAkira Tukada (1 patent)Kenichi NishioKenichi Nishio (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Oriental Photo Industrial Co., Ltd. (2 from 9 patents)

2. Hodogaya Chemical Co., Ltd. (1 from 328 patents)

3. Oriental Photo Industries Co., Ltd. (1 from 1 patent)


3 patents:

1. 4820617 - Heat-developable photosensitive material

2. 4725534 - Process for producing a heat-developable photosensitive material

3. 4465761 - Image-forming photosensitive composition

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/5/2026
Loading…