Growing community of inventors

Tokyo, Japan

Isamu Hirasawa

Average Co-Inventor Count = 3.00

ph-index = 2

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 = 19

Isamu Hirasawa ↔ Minoru Sasai (1 patent)Isamu Hirasawa ↔ Osamu Kato (1 patent)Isamu Hirasawa ↔ Kunio Ito (1 patent)Isamu Hirasawa ↔ Hirokazu Mokudai (1 patent)Isamu HirasawaIsamu Hirasawa (2 patents)Minoru SasaiMinoru Sasai (2 patents)Osamu KatoOsamu Kato (2 patents)Kunio ItoKunio Ito (1 patent)Hirokazu MokudaiHirokazu Mokudai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kanda Tsushin Kogyo Co., Ltd. (2 from 15 patents)


2 patents:

1. D248300 - Telephone

2. D245843 - Telephone

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as of
1/9/2026
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