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Hideki Hatanaka — 3 Patents

TOTopcon: 3 patents #244 of 684Top 40%
Tokyo, JP: #36,070 of 90,295 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Hideki Hatanaka has been granted 3 US patents while listed as an inventor at Topcon. The first was granted in 1992 and the most recent in December 1997. Hideki Hatanaka ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Hideki Hatanaka in Tokyo, JP.

Patents per Year

Patents granted per year, 1992 to 1997Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19921995: 1 patents19951997: 1 patents1997

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5694197 Corneal shape measuring apparatus Hisashi Tsukada, Tsutomu Sato, Minoru Kamiya, Takeyuki Kato 1997-12-02
5387951 Intraocular length measuring instrument capable of avoiding errors in measurement caused by the movement of a subject's eye — 1995-02-07
5141302 Intraocular length measuring instrument Akihiro Arai, Akihiko Sekine, Isao Minegishi, Fumio Ohtomo 1992-08-25

Frequent Collaborators

Isao Minegishi1 shared
Akihiko Sekine1 shared
Hisashi Tsukada1 shared
Takeyuki Kato1 shared
Akihiro Arai1 shared
Fumio Ohtomo1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3