Inventor · disambiguated record
Masatoshi Koyama
Also filed as: KOYAMA MASATOSHI
8 granted patents·2 pending applications·229 citations·filing 1982–2016
87Inventor score
Files withAGENCY IND SCIENCE TECHN2SEDI INC2SUMITOMO ELECTRIC INDUSTRIES2KEYENCE CO LTD1KOYAMA MASATOSHI1
Top patents by PatentIndex Score
10 records- 0193US5256711AStarch-containing biodegradable plastic and method of producing sameAGENCY IND SCIENCE TECHN·Filed 1992·Granted Oct 26, 1993·99 cites·11 claims
- 0292US5206087ABiodecomposable or biodisintegrable moldable materialAGENCY IND SCIENCE TECHN·Filed 1991·Granted Apr 27, 1993·85 cites·12 claims
- 0375US9299770B2Method for manufacturing semiconductor deviceSEDI INC·Filed 2015·Granted Mar 29, 2016·2 cites·9 claims
- 0467US8896025B2Method for fabricating semiconductor deviceKOYAMA MASATOSHI·Filed 2011·Granted Nov 25, 2014·3 cites·16 claims
- 0567US4475114AThermal head recording deviceSHARP KK·Filed 1982·Granted Oct 2, 1984·17 cites·7 claims
- 0664US9040426B2Method for manufacturing semiconductor deviceSEDI INC·Filed 2012·Granted May 26, 2015·1 cites·9 claims
- 0761US6774352B2Multi-beam photoelectric sensor and its mountKEYENCE CO LTD·Filed 2002·Granted Aug 10, 2004·22 cites·22 claims
- 0854US2013146844A1Light detector and method for producing light detectorTECHNICAL RES & DEV INST MINIS·Filed 2012·Application pending·0 cites
- 0942US9799508B2Process of forming nitride semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Oct 24, 2017·0 cites·11 claims
- 1035US2017117402A1Semiconductor device and method of producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masatoshi Koyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →