Inventor · disambiguated record
Katsuhisa Kohyama
Also filed as: KOHYAMA KATSUHISA
13 granted patents·207 citations·filing 1975–1986
92Inventor score
Files withMITSUBISHI CHEM IND13
Top patents by PatentIndex Score
13 records- 0190US4260731AAromatic polyester-polycarbonateMITSUBISHI CHEM IND·Filed 1979·Granted Apr 7, 1981·50 cites·8 claims
- 0275US4664679AAqueous dispersion of silicic anhydride and abrasive composition comprising the dispersionMITSUBISHI CHEM IND·Filed 1985·Granted May 12, 1987·49 cites·18 claims
- 0370US4546172AProcess for producing polycarbonate resin particlesMITSUBISHI CHEM IND·Filed 1984·Granted Oct 8, 1985·21 cites·14 claims
- 0464US4369303AProcess for producing an aromatic polyesterpolycarbonateMITSUBISHI CHEM IND·Filed 1980·Granted Jan 18, 1983·17 cites·10 claims
- 0561US4661555APolycarbonate resin composition and process for its productionMITSUBISHI CHEM IND·Filed 1985·Granted Apr 28, 1987·13 cites·16 claims
- 0659US4323519AMethod of washing organic solvent solution of polycarbonateMITSUBISHI CHEM IND·Filed 1979·Granted Apr 6, 1982·12 cites·7 claims
- 0758US4252939AMethod for manufacture of aromatic polyester-polycarbonateMITSUBISHI CHEM IND·Filed 1979·Granted Feb 24, 1981·10 cites·11 claims
- 0857US4452976AProcess for producing aromatic polyester polycarbonate particlesMITSUBISHI CHEM IND·Filed 1983·Granted Jun 5, 1984·13 cites·14 claims
- 0953US4239882AProcess for producing polyesterMITSUBISHI CHEM IND·Filed 1975·Granted Dec 16, 1980·8 cites·7 claims
- 1044US4684713AHydrocarbon terminated polyamide resin and process for producing the sameMITSUBISHI CHEM IND·Filed 1986·Granted Aug 4, 1987·6 cites·9 claims
- 1134US4308373AHalogen-containing polycarbonate resin and process for producing sameMITSUBISHI CHEM IND·Filed 1980·Granted Dec 29, 1981·6 cites·11 claims
- 1231US4323663AProcess for producing a halogen-containing polycarbonate resinMITSUBISHI CHEM IND·Filed 1980·Granted Apr 6, 1982·2 cites·9 claims
- 1328US4429103AMethod for preparation of aromatic polyester-polycarbonateMITSUBISHI CHEM IND·Filed 1982·Granted Jan 31, 1984·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →