Inventor · disambiguated record
Masaki Tohyama
Also filed as: TOHYAMA MASAKI
17 granted patents·4 pending applications·372 citations·filing 1993–2017
94Inventor score
Top patents by PatentIndex Score
21 records- 0197US5642371AOptical transmission apparatusTOSHIBA KK·Filed 1994·Granted Jun 24, 1997·133 cites·18 claims
- 0286US9431793B2Semiconductor laser deviceTOSHIBA KK·Filed 2015·Granted Aug 30, 2016·4 cites·12 claims
- 0386US5970081AGrating coupled surface emitting deviceTOSHIBA KK·Filed 1997·Granted Oct 19, 1999·72 cites·21 claims
- 0477US5347526AWavelength-tunable semiconductor laserTOSHIBA KK·Filed 1993·Granted Sep 13, 1994·36 cites·15 claims
- 0572US5901265AOptical semiconductor device and method of fabricating the sameTOSHIBA KK·Filed 1997·Granted May 4, 1999·34 cites·11 claims
- 0671US8348468B2Light emitting deviceTOSHIBA KK·Filed 2010·Granted Jan 8, 2013·3 cites·10 claims
- 0766US6865204B2Ridge waveguide type photo semiconductor device and method for fabricating sameTOSHIBA KK·Filed 2002·Granted Mar 8, 2005·8 cites·11 claims
- 0865US5604762ASemiconductor optical deviceTOSHIBA KK·Filed 1994·Granted Feb 18, 1997·21 cites·48 claims
- 0964US8432948B2Semiconductor laser deviceTOHYAMA MASAKI·Filed 2011·Granted Apr 30, 2013·2 cites·22 claims
- 1064US6108481AOptical semiconductor device and its manufacturing methodTOSHIBA KK·Filed 1998·Granted Aug 22, 2000·27 cites·12 claims
- 1157US5889913AOptical semiconductor device and method of fabricating the sameTOSHIBA KK·Filed 1996·Granted Mar 30, 1999·20 cites·5 claims
- 1255US7139450B2Laser transmitter deviceTOSHIBA KK·Filed 2003·Granted Nov 21, 2006·5 cites·13 claims
- 1355US6700251B2Vibrating device for axially vibrating a movable memberCITIZEN ELECTRONICS·Filed 2002·Granted Mar 2, 2004·7 cites·7 claims
- 1445US2012106127A1Light emitting deviceHATTORI YASUSHI·Filed 2011·Application pending·0 cites
- 1543US8729575B2Semiconductor light emitting device and manufacturing method of the sameHWANG JONGIL·Filed 2011·Granted May 20, 2014·0 cites·13 claims
- 1642US2011216554A1Light emitting deviceTOSHIBA KK·Filed 2010·Application pending·0 cites
- 1741US9093588B2Semiconductor light emitting device with an aluminum containing layer formed thereonHWANG JONGIL·Filed 2011·Granted Jul 28, 2015·0 cites·23 claims
- 1841US2018101001A1Cell selecting apparatus and cell selecting systemTOSHIBA KK·Filed 2017·Application pending·0 cites
- 1940US2011157864A1Light emitting deviceTOSHIBA KK·Filed 2010·Application pending·0 cites
- 2038US8457167B2Semiconductor laser device and method of manufacturing the sameSUGAI MAKI·Filed 2010·Granted Jun 4, 2013·0 cites·8 claims
- 2137US8649408B2Semiconductor laser deviceHASHIMOTO REI·Filed 2010·Granted Feb 11, 2014·0 cites·10 claims
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