Growing community of inventors

Miyagi, Japan

Yoshitsugu Ohizumi

Average Co-Inventor Count = 3.27

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 = 0

Yoshitsugu OhizumiMasaru Kuramoto (3 patents)Yoshitsugu OhizumiEiji Nakayama (3 patents)Yoshitsugu OhizumiTsuyoshi Fujimoto (1 patent)Yoshitsugu OhizumiYoshitsugu Ohizumi (3 patents)Masaru KuramotoMasaru Kuramoto (70 patents)Eiji NakayamaEiji Nakayama (6 patents)Tsuyoshi FujimotoTsuyoshi Fujimoto (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Corporation (3 from 58,131 patents)


3 patents:

1. 8822975 - Method of manufacturing semiconductor laser, semiconductor laser, optical pickup, optical disk device, method of manufacturing semiconductor device, semiconductor device, and method of growing nitride type Group III-V compound semiconductor layer

2. 8530255 - Method of manufacturing semiconductor laser, semiconductor laser, optical pickup, optical disk device, method of manufacturing semiconductor device, semiconductor device, and method of growing nitride type group III-V compound semiconductor layer

3. 8202750 - Method of manufacturing semiconductor device, semiconductor laser, optical pickup, and optical disk device with nitride type group III-V compound semiconductor layer

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/6/2026
Loading…