Growing community of inventors

Chiba, Japan

Naoyoshi Hatakeyama

Average Co-Inventor Count = 3.53

ph-index = 4

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 = 21

Naoyoshi HatakeyamaShinji Tanaka (6 patents)Naoyoshi HatakeyamaHidetoshi Ono (5 patents)Naoyoshi HatakeyamaKouichi Kodoi (4 patents)Naoyoshi HatakeyamaYasunari Okada (1 patent)Naoyoshi HatakeyamaToshihide Yoshitome (1 patent)Naoyoshi HatakeyamaNaoyoshi Hatakeyama (6 patents)Shinji TanakaShinji Tanaka (17 patents)Hidetoshi OnoHidetoshi Ono (12 patents)Kouichi KodoiKouichi Kodoi (7 patents)Yasunari OkadaYasunari Okada (9 patents)Toshihide YoshitomeToshihide Yoshitome (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Idemitsu Kosan Company, Limited (5 from 2,276 patents)

2. Idemitsu Petrochemical Co., Ltd. (1 from 555 patents)


6 patents:

1. 7528279 - Adamantane derivatives and process for producing the same

2. 7470824 - Adamantane derivative and process for producing the same

3. 7456311 - Adamantane derivative, process for producing the same, and photosensitive material for photoresist

4. 7423180 - Bis(3-amino-4-hydroxyphenyl)adamantane derivatives and process for production thereof

5. 7402712 - Adamantyl vinyl ether compound and production process for the same

6. 7084295 - Perfluoroadamantyl acrylate compound and intermediate therefor

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