Growing community of inventors

Nasu-gun, Japan

Chitoshi Okawara

Average Co-Inventor Count = 6.00

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 = 3

Chitoshi Okawara ↔ Shigeru Hayakawa (1 patent)Chitoshi Okawara ↔ Takaharu Tasaki (1 patent)Chitoshi Okawara ↔ Seiichi Watanabe (1 patent)Chitoshi Okawara ↔ Shigeru Akutsu (1 patent)Chitoshi Okawara ↔ Mitsuhiro Sasazaki (1 patent)Chitoshi Okawara ↔ Shigeru Akutsu (1 patent)Chitoshi Okawara ↔ Seiichi Watanabe (1 patent)Chitoshi Okawara ↔ Shigeru Hayakawa (1 patent)Chitoshi OkawaraChitoshi Okawara (1 patent)Shigeru HayakawaShigeru Hayakawa (12 patents)Takaharu TasakiTakaharu Tasaki (11 patents)Seiichi WatanabeSeiichi Watanabe (1 patent)Shigeru AkutsuShigeru Akutsu (1 patent)Mitsuhiro SasazakiMitsuhiro Sasazaki (1 patent)Shigeru AkutsuShigeru Akutsu (1 patent)Seiichi WatanabeSeiichi Watanabe (2 patents)Shigeru HayakawaShigeru Hayakawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yoshino Kogyosho Co., Ltd. (1 from 665 patents)

2. Seiichi Watanabe (0 patent)

3. Shigeru Hayakawa (0 patent)

4. Mitsuhiro Sasazaki (0 patent)

5. Shigeru Akutsu (0 patent)

6. Takaharu Tasaki (0 patent)

7. Chitoshi Okawara (0 patent)


1 patent:

1. 5775594 - Sprayer

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as of
12/16/2025
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