Growing community of inventors

Hitachi, Japan

Keiichi Endo

Average Co-Inventor Count = 6.05

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 = 23

Keiichi EndoAkira Kageyama (3 patents)Keiichi EndoYasuo Katsuya (3 patents)Keiichi EndoSeiji Miyaoka (2 patents)Keiichi EndoSusumu Kaneko (2 patents)Keiichi EndoKouji Ohkoshi (2 patents)Keiichi EndoYoshii Morishita (1 patent)Keiichi EndoShigeru Hayashida (1 patent)Keiichi EndoMasato Fukasawa (1 patent)Keiichi EndoTakayuki Akimoto (1 patent)Keiichi EndoYasuki Mori (1 patent)Keiichi EndoMegumi Matsui (1 patent)Keiichi EndoMikio Itagaki (1 patent)Keiichi EndoYasushi Shinbo (1 patent)Keiichi EndoChihiro Kato (1 patent)Keiichi EndoMakoto Sekine (1 patent)Keiichi EndoKeiichi Endo (4 patents)Akira KageyamaAkira Kageyama (28 patents)Yasuo KatsuyaYasuo Katsuya (5 patents)Seiji MiyaokaSeiji Miyaoka (3 patents)Susumu KanekoSusumu Kaneko (3 patents)Kouji OhkoshiKouji Ohkoshi (2 patents)Yoshii MorishitaYoshii Morishita (36 patents)Shigeru HayashidaShigeru Hayashida (29 patents)Masato FukasawaMasato Fukasawa (20 patents)Takayuki AkimotoTakayuki Akimoto (19 patents)Yasuki MoriYasuki Mori (17 patents)Megumi MatsuiMegumi Matsui (9 patents)Mikio ItagakiMikio Itagaki (8 patents)Yasushi ShinboYasushi Shinbo (2 patents)Chihiro KatoChihiro Kato (1 patent)Makoto SekineMakoto Sekine (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Chemical Company, Ltd. (4 from 1,641 patents)


4 patents:

1. 5604063 - Composition for charge transport layer and electrophotographic member

2. 5534375 - Composition for forming charge transport layer and electrophotographic

3. 4954406 - Electrophotographic plate including an undercoating layer having a

4. 4734347 - Electrophotographic plate having a protective layer of a

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