Inventor · disambiguated record
Katsuhisa Itoh
Also filed as: ITOH KATSUHISA
13 granted patents·1 pending application·240 citations·filing 1984–2021
93Inventor score
Top patents by PatentIndex Score
14 records- 0186US6795460B1Laser device and an optical signal amplifier using thereofFiled 2000·Granted Sep 21, 2004·27 cites·20 claims
- 0286US4684448AProcess of producing neodymium-iron alloySUMITOMO LIGHT METAL IND·Filed 1985·Granted Aug 4, 1987·42 cites·5 claims
- 0378US6798792B2Laser device and light signal amplifying device using the sameHOYA CORP·Filed 2001·Granted Sep 28, 2004·15 cites·11 claims
- 0478US4783245AProcess and apparatus for producing alloy containing terbium and/or gadoliniumSUMITOMO LIGHT METAL IND·Filed 1987·Granted Nov 8, 1988·26 cites·21 claims
- 0577US6533883B1Method of manufacturing optical mediumHOYA CORP·Filed 2000·Granted Mar 18, 2003·15 cites·12 claims
- 0673US4747924AApparatus for producing neodymium-iron alloySUMITOMO LIGHT METAL IND·Filed 1987·Granted May 31, 1988·22 cites·8 claims
- 0769US6042739AEtchant and method for etching chalcogenide glass and optical member having smooth surfaceHOYA CORP·Filed 1997·Granted Mar 28, 2000·31 cites·22 claims
- 0868US4737248AProcess for producing dysprosium-iron alloy and neodymium-dysprosium-iron alloySUMITOMO LIGHT METAL IND·Filed 1986·Granted Apr 12, 1988·17 cites·14 claims
- 0961US5917108ADrawing a chalcogenide glass fiber in a sulfur atmosphereHOYA CORP·Filed 1997·Granted Jun 29, 1999·14 cites·10 claims
- 1059US2023182231A1Thermal radiation light detection device and laser processing deviceHAMAMATSU PHOTONICS KK·Filed 2021·Application pending·0 cites
- 1157US4521284AElectrolytic method of producing a high purity aluminum-lithium mother alloySUMITOMO LIGHT METAL IND·Filed 1984·Granted Jun 4, 1985·9 cites·4 claims
- 1255US6053012AMethod for manufacturing glass preform and glass fiberHOYA CORP·Filed 1998·Granted Apr 25, 2000·12 cites·34 claims
- 1336US5764661ALaser glasses and laser glass fibersHOYA CORP·Filed 1995·Granted Jun 9, 1998·5 cites·41 claims
- 1435US5856882AOptical fibers and optical fiber amplifiersHOYA CORP·Filed 1996·Granted Jan 5, 1999·5 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →