Growing community of inventors

Hitachi, Japan

Toshiyuki Koterazaka

Average Co-Inventor Count = 11.00

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 = 10

Toshiyuki Koterazaka ↔ Hiroshi Kimura (1 patent)Toshiyuki Koterazaka ↔ Kazuo Tahara (1 patent)Toshiyuki Koterazaka ↔ Katsuji Marumoto (1 patent)Toshiyuki Koterazaka ↔ Toshimi Abukawa (1 patent)Toshiyuki Koterazaka ↔ Mitsuyuki Hombu (1 patent)Toshiyuki Koterazaka ↔ Hirohisa Yamamura (1 patent)Toshiyuki Koterazaka ↔ Tsutomu Ohmae (1 patent)Toshiyuki Koterazaka ↔ Hisatugu Ishikura (1 patent)Toshiyuki Koterazaka ↔ Shuichi Takamatsu (1 patent)Toshiyuki Koterazaka ↔ Toru Tatsuzaki (1 patent)Toshiyuki KoterazakaToshiyuki Koterazaka (1 patent)Hiroshi KimuraHiroshi Kimura (91 patents)Kazuo TaharaKazuo Tahara (51 patents)Katsuji MarumotoKatsuji Marumoto (28 patents)Toshimi AbukawaToshimi Abukawa (23 patents)Mitsuyuki HombuMitsuyuki Hombu (19 patents)Hirohisa YamamuraHirohisa Yamamura (19 patents)Tsutomu OhmaeTsutomu Ohmae (16 patents)Hisatugu IshikuraHisatugu Ishikura (7 patents)Shuichi TakamatsuShuichi Takamatsu (5 patents)Toru TatsuzakiToru Tatsuzaki (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,508 patents)

2. Hitachi Automotive Engineering Co., Ltd. (1 from 152 patents)


1 patent:

1. 4926960 - Electric power steering apparatus for vehicle

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