Growing community of inventors

Miyagi, Japan

Koji Hayasaka

Average Co-Inventor Count = 4.00

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 = 11

Koji Hayasaka ↔ Osamu Ishii (1 patent)Koji Hayasaka ↔ Goro Shibamoto (1 patent)Koji Hayasaka ↔ Kazumi Izumitani (1 patent)Koji HayasakaKoji Hayasaka (1 patent)Osamu IshiiOsamu Ishii (17 patents)Goro ShibamotoGoro Shibamoto (13 patents)Kazumi IzumitaniKazumi Izumitani (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 7137563 - Method for making IC card

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/4/2026
Loading…