Growing community of inventors

Tochigi, Japan

Masayuki Okawa

Average Co-Inventor Count = 3.10

ph-index = 3

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 = 48

Masayuki OkawaKazuya Otsuji (3 patents)Masayuki OkawaJun Yamamoto (1 patent)Masayuki OkawaYoshiaki Kumamoto (1 patent)Masayuki OkawaKaoru Hamada (1 patent)Masayuki OkawaKenichi Otani (1 patent)Masayuki OkawaHidesato Kizaki (1 patent)Masayuki OkawaMasayasu Sato (1 patent)Masayuki OkawaYasuki Tsutsumi (1 patent)Masayuki OkawaTomoshige Umeda (1 patent)Masayuki OkawaTakeshi Ban (1 patent)Masayuki OkawaHiroshi Sonohara (1 patent)Masayuki OkawaKeiichiro Sugai (1 patent)Masayuki OkawaKenichi Tanihata (1 patent)Masayuki OkawaMasako Isemura (1 patent)Masayuki OkawaMasayuki Okawa (5 patents)Kazuya OtsujiKazuya Otsuji (16 patents)Jun YamamotoJun Yamamoto (54 patents)Yoshiaki KumamotoYoshiaki Kumamoto (29 patents)Kaoru HamadaKaoru Hamada (28 patents)Kenichi OtaniKenichi Otani (16 patents)Hidesato KizakiHidesato Kizaki (10 patents)Masayasu SatoMasayasu Sato (9 patents)Yasuki TsutsumiYasuki Tsutsumi (8 patents)Tomoshige UmedaTomoshige Umeda (7 patents)Takeshi BanTakeshi Ban (4 patents)Hiroshi SonoharaHiroshi Sonohara (3 patents)Keiichiro SugaiKeiichiro Sugai (1 patent)Kenichi TanihataKenichi Tanihata (1 patent)Masako IsemuraMasako Isemura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (4 from 3,600 patents)

2. Fuji Photo Film Company, Limited (1 from 16,458 patents)


5 patents:

1. 8195283 - Pet body fat measuring tool

2. 6810553 - Disposable brush

3. 6729230 - Calendar roll cleaning apparatus

4. 6605288 - Deodorant composition

5. 5762999 - Process for producing magnetic recording medium

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as of
12/7/2025
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