Inventor
MATSUSHIMA MASAAKI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “MATSUSHIMA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
21 patentsUS5380349AJan 10, 1995
Mold having a diamond layer, for molding optical elements
CANON KK106 citations98
US6346678B1Feb 12, 2002
Circuit board and method of manufacturing a circuit board
CANON KK51 citations92
US4658388AApr 14, 1987
Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride
CANON KK27 citations92
US4837123AJun 6, 1989
Mask structure for lithography, method of preparation thereof and lithographic method
CANON KK26 citations91
US6760051B2Jul 6, 2004
Image forming apparatus with switching elements
CANON KK19 citations90
US4677042AJun 30, 1987
Mask structure for lithography, method for preparation thereof and lithographic method
CANON KK23 citations81
US5119328AJun 2, 1992
Solid state memory device
CANON KK8 citations74
US4693943ASep 15, 1987
Magnetooptical recording medium
CANON KK13 citations74
US6383346B2May 7, 2002
Method for forming thin films
CANON KK11 citations73
US5777828AJul 7, 1998
Magnetic alloy and magnetic head having at least a part made of the magnetic alloy
CANON KK8 citations73
US5478416ADec 26, 1995
Magnetic alloy
CANON KK12 citations73
US4777068AOct 11, 1988
Optical recording medium
CANON KK17 citations73
US4741967AMay 3, 1988
Magnetic recording medium
CANON KK16 citations73
US4710418ADec 1, 1987
Optical recording medium
CANON KK14 citations73
US4618537AOct 21, 1986
Recording medium
CANON KK13 citations73
US4578322AMar 25, 1986
Recording medium
CANON KK9 citations73
US4053209AOct 11, 1977
Electrochromic device
CANON KK18 citations73
US6184059B1Feb 6, 2001
Process of making diamond-metal ohmic junction semiconductor device
CANON KK2 citations63
US4734334AMar 29, 1988
Magneto-optical recording medium
CANON KK4 citations62
US7041391B2May 9, 2006
Method for forming thin films
CANON KK1 citations52
US5738950AApr 14, 1998
Magnetooptical recording medium
CANON KK0 citations52
HOYA CORP
3 patentsUS7950252B2May 31, 2011
Method of manufacturing formed article, support member, and forming apparatus
HOYA CORP8 citations82
US7158222B2Jan 2, 2007
Method and device for evaluating spectacle lens or mold for molding spectacle lens, and method and system for manufacturing spectacle lens
HOYA CORP6 citations61
US6932474B2Aug 23, 2005
Progressive-power lens
HOYA CORP0 citations52
MATSUSHIMA MASAAKI
2 patentsHOYA LENS THAILAND LTD
2 patentsUS10156740B2Dec 18, 2018
Spectacle wearing parameter measurement device, spectacle wearing parameter measurement program, and position specifying method
HOYA LENS THAILAND LTD3 citations67
US10955690B2Mar 23, 2021
Spectacle wearing parameter measurement system, measurement program, measurement method thereof, and manufacturing method of spectacle lens
HOYA LENS THAILAND LTD0 citations57