Inventor · disambiguated record
Yoichi Hamada
Also filed as: HAMADA YOICHI
12 granted patents·1 pending application·334 citations·filing 1974–2020
90Inventor score
Files withFUJI PHOTO FILM CO LTD5DAIKIN IND LTD2KONAN INC2MITSUBISHI MATERIALS CORP2KONAN MEDICAL INC1
Top patents by PatentIndex Score
13 records- 0195US5228972AApparatus for measuring concentration of test substance in liquidDAIKIN IND LTD·Filed 1989·Granted Jul 20, 1993·237 cites·18 claims
- 0276US4090211ASelf-developing camera and film pack thereforeFUJI PHOTO FILM CO LTD·Filed 1974·Granted May 16, 1978·10 cites·7 claims
- 0370US5448324ASheet film pack and film pack holderFUJI PHOTO FILM CO LTD·Filed 1993·Granted Sep 5, 1995·15 cites·19 claims
- 0468US7221385B2Picture phone apparatus which checks validity of picture and picture phone system using the sameNEC CORP·Filed 2004·Granted May 22, 2007·9 cites·16 claims
- 0554US4109260ASuperimposing device for use in a data-recording cameraFUJI PHOTO FILM CO LTD·Filed 1977·Granted Aug 22, 1978·4 cites·10 claims
- 0648US4110766ASuperimposing device for use in a data-recording cameraFUJI PHOTO FILM CO LTD·Filed 1977·Granted Aug 29, 1978·3 cites·7 claims
- 0744US9612110B2Observation device of cornea for transplantation, and auxiliary light source unit used for the sameKONAN MEDICAL INC·Filed 2014·Granted Apr 4, 2017·0 cites·3 claims
- 0843US2022168824A1Base material for hard sintered material, hard sintered material, and cutting toolMITSUBISHI MATERIALS CORP·Filed 2020·Application pending·0 cites
- 0940US5757461AMethod for displaying a photographing point of a cornea in an apparatus for obtaining video images of corneal cellsKONAN INC·Filed 1996·Granted May 26, 1998·32 cites·1 claims
- 1037US12420344B2Base material for hard sintered body, hard sintered body, and cutting toolMITSUBISHI MATERIALS CORP·Filed 2020·Granted Sep 23, 2025·0 cites·8 claims
- 1137US5320734ATest apparatus for measuring concentration of test substance in liquidDAIKIN IND LTD·Filed 1992·Granted Jun 14, 1994·8 cites·12 claims
- 1233US5557351AApparatus for obtaining visual images of cornea cells and method for displaying imaging-position around cornea for the apparatusKONAN INC·Filed 1994·Granted Sep 17, 1996·16 cites·8 claims
- 1327US5742863AFilm holderFUJI PHOTO FILM CO LTD·Filed 1995·Granted Apr 21, 1998·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →