Inventor
KAWAMURA MASAO
JP49 patents
⚠️ This page may combine multiple inventors who share the name “KAWAMURA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEITETSU KAGAKU CO LTD
17 patentsUS4569909AFeb 11, 1986
Process for preparing uridine diphosphate-N-acetylgalactosamine
SEITETSU KAGAKU CO LTD16 citations78
US4054499AOct 18, 1977
Process for producing 2-chloropyridine
SEITETSU KAGAKU CO LTD11 citations68
US5101049AMar 31, 1992
Novel thiophene derivatives and methods for producing the same
SEITETSU KAGAKU CO LTD2 citations62
US4792612ADec 20, 1988
Thiophene derivatives and methods for producing the same
SEITETSU KAGAKU CO LTD3 citations62
US4124646ANov 7, 1978
Process for producing thioanisole
SEITETSU KAGAKU CO LTD8 citations62
US4849138AJul 18, 1989
Method of producing alkali metal benzenesulfinates
SEITETSU KAGAKU CO LTD5 citations61
US4740578AApr 26, 1988
Process for producing polythiobisphenols and process for producing mercaptophenols by the hydrogenolysis of the same
SEITETSU KAGAKU CO LTD6 citations61
US4835317AMay 30, 1989
4-tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the same
SEITETSU KAGAKU CO LTD2 citations60
US4273941AJun 16, 1981
Process for producing p-hydroxybenzaldehyde
SEITETSU KAGAKU CO LTD4 citations60
US4195041AMar 25, 1980
Process for producing p-hydroxybenzaldehyde
SEITETSU KAGAKU CO LTD3 citations60
US3969205AJul 13, 1976
Process for producing 2-chloropyridine
SEITETSU KAGAKU CO LTD3 citations59
US4722917AFeb 2, 1988
Anti-I sorbent
SEITETSU KAGAKU CO LTD5 citations58
US4604349AAug 5, 1986
Process for preparing uridine diphosphate-N-acetylgalactosamine
SEITETSU KAGAKU CO LTD3 citations58
US4943655AJul 24, 1990
Salt of 5-acetyl-2-alkylbenzenesulfonic acid
SEITETSU KAGAKU CO LTD0 citations51
US4853158AAug 1, 1989
Process for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbenzene sulfonic acid
SEITETSU KAGAKU CO LTD0 citations51
US5102858AApr 7, 1992
Heat-sensitive recording materials containing high purity bis(4-hydroxyphenyl)sulfides
SEITETSU KAGAKU CO LTD1 citations49
US5175372ADec 29, 1992
Process of producing high purity bis(4-hydroxyphenyl)sulfides and heat-sensitive recording materials containing the same
SEITETSU KAGAKU CO LTD0 citations38
HITACHI LTD
14 patentsUS5011788AApr 30, 1991
Process of manufacturing semiconductor integrated circuit device and product formed thereby
HITACHI LTD22 citations92
US4746963AMay 24, 1988
Isolation regions formed by locos followed with groove etch and refill
HITACHI LTD33 citations92
US5309011AMay 3, 1994
Wafer scale or full wafer memory system, packaging method thereof, and wafer processing method employed therein
HITACHI LTD24 citations91
US5141888AAug 25, 1992
Process of manufacturing semiconductor integrated circuit device having trench and field isolation regions
HITACHI LTD15 citations82
US4819054AApr 4, 1989
Semiconductor IC with dual groove isolation
HITACHI LTD18 citations82
US5191224AMar 2, 1993
Wafer scale of full wafer memory system, packaging method thereof, and wafer processing method employed therein
HITACHI LTD17 citations81
US5200348AApr 6, 1993
Method of manufacturing semiconductor device with constant width deep groove isolation
HITACHI LTD8 citations74
US4853343AAug 1, 1989
Method for fabricating a semiconductor integrated circuit device having thick oxide films and groove etch and refill
HITACHI LTD8 citations74
US4016829AApr 12, 1977
Apparatus for crystal growth
HITACHI LTD10 citations74
US4017881AApr 12, 1977
Light emitting semiconductor device and a method for making the same
HITACHI LTD15 citations74
US3960618AJun 1, 1976
Epitaxial growth process for compound semiconductor crystals in liquid phase
HITACHI LTD17 citations74
US4933737AJun 12, 1990
Polysilon contacts to IC mesas
HITACHI LTD5 citations63
US3981764ASep 21, 1976
III-V Compound semi-conductor crystal growth from a liquid phase on a substract including filtering liquid phase
HITACHI LTD5 citations63
US5019523AMay 28, 1991
Process for making polysilicon contacts to IC mesas
HITACHI LTD0 citations52
CASIO COMPUTER CO LTD
8 patentsUS5119084AJun 2, 1992
Liquid crystal display apparatus
CASIO COMPUTER CO LTD61 citations96
US4769639ASep 6, 1988
Liquid crystal drive circuit for driving a liquid crystal display element having scanning and signal electrodes arranged in matrix form
CASIO COMPUTER CO LTD65 citations96
US4581654AApr 8, 1986
Portable television receiver of the panel type
CASIO COMPUTER CO LTD34 citations90
US4642694AFeb 10, 1987
Television video signal A/D converter
CASIO COMPUTER CO LTD22 citations82
US4642693AFeb 10, 1987
Television video signal A/D converter apparatus
CASIO COMPUTER CO LTD21 citations79
US6320868B1Nov 20, 2001
Transmission/reception system and receiver
CASIO COMPUTER CO LTD9 citations74
US5117224AMay 26, 1992
Color liquid crystal display apparatus
CASIO COMPUTER CO LTD12 citations74
US4965566AOct 23, 1990
Signal electrode drive circuit for image display apparatus operable under low frequency
CASIO COMPUTER CO LTD15 citations74
MITSUBISHI MATERIALS CORP
2 patentsUS11512386B2Nov 29, 2022
Film formation device for cutting tool provided with coating film, and film formation method for cutting tool provided with coating film
MITSUBISHI MATERIALS CORP0 citations55
US10781514B2Sep 22, 2020
Film formation device for cutting tool provided with with coating film, and film formation method for cutting tool provided with coating film
MITSUBISHI MATERIALS CORP0 citations45