Growing community of inventors

Tokyo, Japan

Takeyuki Kato

Average Co-Inventor Count = 2.65

ph-index = 8

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 = 221

Takeyuki KatoYasufumi Fukuma (15 patents)Takeyuki KatoEiichi Yanagi (9 patents)Takeyuki KatoYukio Ikezawa (7 patents)Takeyuki KatoNarumi Machida (3 patents)Takeyuki KatoMinoru Kamiya (2 patents)Takeyuki KatoTsutomu Sato (1 patent)Takeyuki KatoTadashi Okamoto (1 patent)Takeyuki KatoAkihiro Arai (1 patent)Takeyuki KatoHisashi Tsukada (1 patent)Takeyuki KatoHiroyuki Ohtsuka (1 patent)Takeyuki KatoKouichi Matsumoto (1 patent)Takeyuki KatoYoshihiko Hanamura (1 patent)Takeyuki KatoMasaki Ohno (1 patent)Takeyuki KatoMitsuaki Wada (1 patent)Takeyuki KatoAkio Sakurai (1 patent)Takeyuki KatoHideki Hatanaka (1 patent)Takeyuki KatoToshihiro Okashita (1 patent)Takeyuki KatoYukio KK Topcon Ikezawa (0 patent)Takeyuki KatoTakeyuki Kato (24 patents)Yasufumi FukumaYasufumi Fukuma (115 patents)Eiichi YanagiEiichi Yanagi (29 patents)Yukio IkezawaYukio Ikezawa (17 patents)Narumi MachidaNarumi Machida (3 patents)Minoru KamiyaMinoru Kamiya (3 patents)Tsutomu SatoTsutomu Sato (174 patents)Tadashi OkamotoTadashi Okamoto (65 patents)Akihiro AraiAkihiro Arai (50 patents)Hisashi TsukadaHisashi Tsukada (45 patents)Hiroyuki OhtsukaHiroyuki Ohtsuka (38 patents)Kouichi MatsumotoKouichi Matsumoto (29 patents)Yoshihiko HanamuraYoshihiko Hanamura (12 patents)Masaki OhnoMasaki Ohno (6 patents)Mitsuaki WadaMitsuaki Wada (6 patents)Akio SakuraiAkio Sakurai (4 patents)Hideki HatanakaHideki Hatanaka (3 patents)Toshihiro OkashitaToshihiro Okashita (2 patents)Yukio KK Topcon IkezawaYukio KK Topcon Ikezawa (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Topcon (22 from 1,033 patents)

2. Other (2 from 832,843 patents)


24 patents:

1. 7292713 - Eye test service system

2. 7274806 - Service system for selecting personal goods to wear or carry, and program product therefor

3. 7152976 - Apparatus for simulating processing of eyeglass lenses

4. 7088439 - Lens meter

5. 7010146 - Database constructing system

6. 6950180 - Lens meter

7. 6937328 - Method for measuring refractive power and apparatus therefor

8. 6778264 - Lens meter

9. 6705728 - Ophthalmologic apparatus

10. 6634754 - Eyeglass frame selecting system

11. 6428301 - Lens molding apparatus and lens molding tool

12. 6359684 - Lens specifying device

13. 6236453 - Lens meter

14. 6145989 - Lens meter

15. 6082859 - Ophthalmological photographing apparatus

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/29/2025
Loading…