Growing community of inventors

Fukuoka, Japan

Hajime Kakihana

Average Co-Inventor Count = 1.87

ph-index = 13

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 = 634

Hajime KakihanaJames Piatt (18 patents)Hajime KakihanaMitsuya Obara (12 patents)Hajime KakihanaLea Mari Mendoza (12 patents)Hajime KakihanaRie Yokoyama (11 patents)Hajime KakihanaMinoru Tani (10 patents)Hajime KakihanaYuji Yoshioka (6 patents)Hajime KakihanaMasafumi Ishikawa (2 patents)Hajime KakihanaOsamu Miura (1 patent)Hajime KakihanaJames Piatt (1 patent)Hajime KakihanaHajime Kakihana (51 patents)James PiattJames Piatt (19 patents)Mitsuya ObaraMitsuya Obara (47 patents)Lea Mari MendozaLea Mari Mendoza (27 patents)Rie YokoyamaRie Yokoyama (19 patents)Minoru TaniMinoru Tani (76 patents)Yuji YoshiokaYuji Yoshioka (32 patents)Masafumi IshikawaMasafumi Ishikawa (29 patents)Osamu MiuraOsamu Miura (7 patents)James PiattJames Piatt (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (51 from 1,192 patents)


51 patents:

1. D704316 - Toilet

2. D677768 - Lavatory

3. D677769 - Lavatory

4. D677770 - Lavatory

5. D670659 - Remote controller for toilet seat with bidet

6. D658745 - Grab bar

7. D658746 - Grab bar

8. D655787 - Faucet

9. D655788 - Faucet

10. D655396 - Faucet

11. D655395 - Faucet

12. D655394 - Faucet

13. D653304 - Shower head

14. D652892 - Shower head

15. D652482 - Shower head

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as of
12/20/2025
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