Inventor · disambiguated record
Kiyomi Sakai
Also filed as: SAKAI KIYOMI · YAMAMOTO MASATOSHI
10 granted patents·1 pending application·43 citations·filing 1977–2006
87Inventor score
Top patents by PatentIndex Score
11 records- 0156US4568769AMethod for producing a mixture containing cycloalkanones and cycloalkanolsSUMITOMO CHEMICAL CO·Filed 1984·Granted Feb 4, 1986·6 cites·12 claims
- 0254US5300662AProcess for producing coumarin and derivatives thereofSUMITOMO CHEMICAL CO·Filed 1992·Granted Apr 5, 1994·5 cites·14 claims
- 0350US4716253AMethod for producing cycloalkanolsSUMITOMO CHEMICAL CO·Filed 1986·Granted Dec 29, 1987·4 cites·11 claims
- 0446US5260457AProcess for producing coumarin and derivative thereofSUMITOMO CHEMICAL CO·Filed 1992·Granted Nov 9, 1993·3 cites·5 claims
- 0544US4879422AMethod for producing cycloalkanolSUMITOMO CHEMICAL CO·Filed 1988·Granted Nov 7, 1989·3 cites·11 claims
- 0640US5237075AProcess for producing 3,4-dihydrocoumarin derivativesSUMITOMO CHEMICAL CO·Filed 1992·Granted Aug 17, 1993·3 cites·10 claims
- 0740US4670612AMethod for producing alicyclic alcoholsSUMITOMO CHEMICAL CO·Filed 1986·Granted Jun 2, 1987·2 cites·7 claims
- 0839US5231194AProcess for producing coumarin derivativesSUMITOMO CHEMICAL CO·Filed 1990·Granted Jul 27, 1993·7 cites·13 claims
- 0939US2008279227A1Method for Generating Terahertz Electromagnetic Waves by Using Coherent PhononsNAKAYAMA MASAAKI·Filed 2006·Application pending·0 cites
- 1038US4173821AMethod of producing semiconductor devicesHITACHI LTD·Filed 1977·Granted Nov 13, 1979·9 cites·13 claims
- 1136US5218129AProcess for producing 3,4-dihydrocoumarinSUMITOMO CHEMICAL CO·Filed 1991·Granted Jun 8, 1993·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →