Inventor
SATO HIROMASA
JP37 patents
⚠️ This page may combine multiple inventors who share the name “SATO HIROMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI GLASS CO LTD
19 patentsUS6580674B1Jun 17, 2003
Phase shifter and optical head device mounted with the same
ASAHI GLASS CO LTD60 citations94
US6618116B1Sep 9, 2003
Optical head device and a diffraction element suitable for the device, and a method of manufacturing the diffraction element and the optical head device
ASAHI GLASS CO LTD37 citations93
US6271966B1Aug 7, 2001
Optical head device including an optically anisotropic diffraction grating and process for its production
ASAHI GLASS CO LTD19 citations92
US6118586ASep 12, 2000
Optical head device including an optically anisotropic diffraction grating and production method thereof
ASAHI GLASS CO LTD36 citations92
US7142363B2Nov 28, 2006
Diffraction element and optical device
ASAHI GLASS CO LTD51 citations88
US7430076B2Sep 30, 2008
Diffraction element
ASAHI GLASS CO LTD14 citations84
US6304312B1Oct 16, 2001
Optical head, method of manufacturing the same, and diffraction element suitable therefor
ASAHI GLASS CO LTD18 citations84
US7388822B2Jun 17, 2008
Liquid crystal lens element and optical head device
ASAHI GLASS CO LTD15 citations82
US6917576B2Jul 12, 2005
Retarder and optical head device installing the same
ASAHI GLASS CO LTD8 citations72
US6180028B1Jan 30, 2001
Liquid-crystal composition and polymeric liquid crystal obtained by polymerizing the same
ASAHI GLASS CO LTD14 citations72
US8040782B2Oct 18, 2011
Wavelength-selective light-shielding element and optical head using the same
ASAHI GLASS CO LTD2 citations63
US7738346B2Jun 15, 2010
Polarizing diffraction element and optical head device
ASAHI GLASS CO LTD6 citations63
US7623291B2Nov 24, 2009
Polarized diffractive filter and layered polarized diffractive filter
ASAHI GLASS CO LTD4 citations63
US7688700B2Mar 30, 2010
Phase correction element and optical head device
ASAHI GLASS CO LTD6 citations62
US7534370B2May 19, 2009
Polymerizable liquid crystal composition, optical anisotropic material, optical element and optical head device
ASAHI GLASS CO LTD4 citations62
US7755834B2Jul 13, 2010
Wavelength-selective diffraction element and optical head device incorporating the same
ASAHI GLASS CO LTD5 citations61
US7719657B2May 18, 2010
Liquid crystal lens element and optical head device
ASAHI GLASS CO LTD3 citations61
US7564504B2Jul 21, 2009
Phase plate and an optical data recording/reproducing device
ASAHI GLASS CO LTD1 citations52
US8040781B2Oct 18, 2011
Wavelength selecting wavelength plate and optical head device using it
ASAHI GLASS CO LTD0 citations40
TABATA CO LTD
10 patentsUS7134149B2Nov 14, 2006
Face mask for diving
TABATA CO LTD21 citations92
US6145133ANov 14, 2000
Swimming goggles
TABATA CO LTD30 citations92
US6092895AJul 25, 2000
Lens frame assembly for a diving mask
TABATA CO LTD29 citations92
US5329643AJul 19, 1994
Diving face mask
TABATA CO LTD41 citations92
US7090594B2Aug 15, 2006
Attachment for golf tee
TABATA CO LTD18 citations84
US7134433B2Nov 14, 2006
Snorkel clip
TABATA CO LTD7 citations74
USD335365SMay 4, 1993
Diver's mask
TABATA CO LTD9 citations74
USD318476SJul 23, 1991
Diver's mask
TABATA CO LTD8 citations74
USD266031SSep 7, 1982
Diver's mask
TABATA CO LTD14 citations74
US7334270B2Feb 26, 2008
Strap for diving face mask
TABATA CO LTD0 citations52
NODA YASUSHI
2 patentsUS9281136B2Mar 8, 2016
Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breaker
NODA YASUSHI5 citations70
US8440112B2May 14, 2013
Electrode material for vacuum circuit breaker and method of manufacturing the same
NODA YASUSHI0 citations49