Inventor
MATSUBARA AKIRA
JP43 patents
⚠️ This page may combine multiple inventors who share the name “MATSUBARA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
11 patentsUS5338857AAug 16, 1994
Aminoketone derivatives of 1,2-oxazole and use thereof
MITSUI TOATSU CHEMICALS12 citations71
US4760078AJul 26, 1988
Immunomodulator 1,2-dithiol-3-thione derivative composition, use method and process of producing the same
MITSUI TOATSU CHEMICALS11 citations71
US4273932AJun 16, 1981
4-Hydroxy-5,6,7,8-tetrahydroquinoline-3-carboxylic acids and derivatives
MITSUI TOATSU CHEMICALS5 citations62
US4263302AApr 21, 1981
Quinolinecarboxylic acid substituted penicillins and pharmaceutical compositions containing the same
MITSUI TOATSU CHEMICALS4 citations62
US5112841AMay 12, 1992
Imidazole derivatives and antiepileptics comprising said imidazole derivatives as effective ingredients
MITSUI TOATSU CHEMICALS3 citations58
US4283398AAug 11, 1981
Cephalosporins
MITSUI TOATSU CHEMICALS1 citations52
US4296112AOct 20, 1981
Cephalosporins
MITSUI TOATSU CHEMICALS1 citations51
US5194606AMar 16, 1993
Preparation process of aminoketones
MITSUI TOATSU CHEMICALS1 citations50
US5602160AFeb 11, 1997
Aminoketone derivatives and use thereof
MITSUI TOATSU CHEMICALS0 citations49
US5498619AMar 12, 1996
Aminoketone derivative and use thereof
MITSUI TOATSU CHEMICALS0 citations49
US5055585AOct 8, 1991
Preparation process of aminoketones
MITSUI TOATSU CHEMICALS0 citations40
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
10 patentsUS6633534B1Oct 14, 2003
Optical disk and optical disk drive
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD70 citations96
US5467328ANov 14, 1995
Lens drive mechanism for optical disc player with parallel support springs having different spring constants
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US5430699AJul 4, 1995
Optical reading and writing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US5629919AMay 13, 1997
Two plate-like beam splitting device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations91
US5031167AJul 9, 1991
Focus error detection system for an optical recording/reproducing system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US4998235AMar 5, 1991
Focus detection system for an optical disk drive using photo sensor elements in the far field of information pits
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US6473373B1Oct 29, 2002
Optical disk apparatus having compensation for objective lens dislocation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations72
US4766303AAug 23, 1988
Optical information system having a birefringence plate movably disposed in accordance with the detected light intensity
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6925038B2Aug 2, 2005
Optical disc apparatus having compensation for objective lens dislocation, and method therefor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations50
US6721246B2Apr 13, 2004
Optical disk apparatus having compensation for objective lens dislocation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations50
SANWA KAGAKU KENKYUSHO CO
6 patentsUS5447946ASep 5, 1995
Hydantoin derivatives for treating complications of diabetes
SANWA KAGAKU KENKYUSHO CO28 citations92
US4985574AJan 15, 1991
Hydantoin derivatives for treating complications of diabetes
SANWA KAGAKU KENKYUSHO CO4 citations73
US4861792AAug 29, 1989
Hydantoin derivatives for treating complications of diabetes
SANWA KAGAKU KENKYUSHO CO7 citations73
US4740517AApr 26, 1988
Antidiabetic spiro-3-heteroazolidines
SANWA KAGAKU KENKYUSHO CO18 citations73
US4978758ADec 18, 1990
Hydantoin derivatives for treating complications of diabetes
SANWA KAGAKU KENKYUSHO CO3 citations62
US4985573AJan 15, 1991
Hydantoin derivatives for treating complications of diabetes
SANWA KAGAKU KENKYUSHO CO0 citations51
PANASONIC IP MAN CO LTD
3 patentsUS12079990B2Sep 3, 2024
Leg muscle strength estimation system and leg muscle strength estimation method
PANASONIC IP MAN CO LTD0 citations57
US12280793B2Apr 22, 2025
Information processing apparatus and information processing method
PANASONIC IP MAN CO LTD0 citations50
US9111363B2Aug 18, 2015
Video playback apparatus and video playback method
PANASONIC IP MAN CO LTD0 citations42