Growing community of inventors

Kurobe, Japan

Hirokazu Watanabe

Average Co-Inventor Count = 1.38

ph-index = 11

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 = 418

Hirokazu WatanabeHiroshi Matoba (3 patents)Hirokazu WatanabeYoshihiro Kanzaka (3 patents)Hirokazu WatanabeRyukichi Murai (2 patents)Hirokazu WatanabeYoshinobu Takahashi (2 patents)Hirokazu WatanabeAkira Tanaka (1 patent)Hirokazu WatanabeKazuo Ida (1 patent)Hirokazu WatanabeYoshio Takamura (1 patent)Hirokazu WatanabeKazuyoshi Ito (1 patent)Hirokazu WatanabeAkishige Utazu (1 patent)Hirokazu WatanabeMasaaki Fukutomi (1 patent)Hirokazu WatanabeKatsunori Kawakami (1 patent)Hirokazu WatanabeMasamichi Shinmi (1 patent)Hirokazu WatanabeHirokazu Watanabe (25 patents)Hiroshi MatobaHiroshi Matoba (31 patents)Yoshihiro KanzakaYoshihiro Kanzaka (26 patents)Ryukichi MuraiRyukichi Murai (28 patents)Yoshinobu TakahashiYoshinobu Takahashi (23 patents)Akira TanakaAkira Tanaka (9 patents)Kazuo IdaKazuo Ida (7 patents)Yoshio TakamuraYoshio Takamura (6 patents)Kazuyoshi ItoKazuyoshi Ito (5 patents)Akishige UtazuAkishige Utazu (1 patent)Masaaki FukutomiMasaaki Fukutomi (1 patent)Katsunori KawakamiKatsunori Kawakami (1 patent)Masamichi ShinmiMasamichi Shinmi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yoshida Kogyo K.k. (14 from 1,145 patents)

2. Ykk Corporation (9 from 1,443 patents)

3. Nippon Notion Kogyo Co., Ltd. (2 from 44 patents)


25 patents:

1. 6457213 - Tack for button

2. 6438811 - Male/female engaging device with tape

3. 6182338 - Female-male engaging device with tapes

4. 6058577 - Attachment structure for fastener member to sheet-like object

5. D415716 - Hook-and-eye fastener

6. 5933929 - Snap button and method of attaching the same

7. 5829105 - Coupler for elongate article

8. 5689860 - Coupler for elongate article

9. 5671514 - Swivel hook

10. 5435043 - Female member of snap button and press tool for clinching the same to

11. 5365641 - Cord stopper

12. 5337458 - Cord stopper

13. 5293670 - Tack button

14. 5101541 - Snap button

15. 4967452 - Attaching device for garment fastener element

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idiyas.com
as of
12/17/2025
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