Inventor
HOTTA TOHRU
JP33 patents
⚠️ This page may combine multiple inventors who share the name “HOTTA TOHRU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
13 patentsUS8363526B2Jan 29, 2013
Optical pickup apparatus
SANYO ELECTRIC CO27 citations92
US8369193B2Feb 5, 2013
Optical pickup apparatus and manufacturing method of optical pickup apparatus
SANYO ELECTRIC CO2 citations62
US7898929B2Mar 1, 2011
Objective lens, and method of manufacturing the same and optical pickup apparatus
SANYO ELECTRIC CO0 citations52
US7796475B2Sep 14, 2010
Optical pickup apparatus
SANYO ELECTRIC CO0 citations52
US8363533B2Jan 29, 2013
Optical pickup apparatus
SANYO ELECTRIC CO0 citations51
US7554751B2Jun 30, 2009
Lens and optical pickup device
SANYO ELECTRIC CO0 citations43
US8385180B2Feb 26, 2013
Optical pickup apparatus
SANYO ELECTRIC CO0 citations41
US8345529B2Jan 1, 2013
Optical pickup apparatus with astigmatism correcting collimating lens
SANYO ELECTRIC CO0 citations41
US8045428B2Oct 25, 2011
Optical pickup apparatus
SANYO ELECTRIC CO0 citations41
US7957234B2Jun 7, 2011
Optical pickup apparatus
SANYO ELECTRIC CO0 citations41
US7952980B2May 31, 2011
Optical pickup apparatus
SANYO ELECTRIC CO0 citations41
US7898910B2Mar 1, 2011
Optical pickup apparatus
SANYO ELECTRIC CO0 citations41
US7672202B2Mar 2, 2010
Optical pickup apparatus
SANYO ELECTRIC CO0 citations39
HOTTA TOHRU
12 patentsUS8081553B2Dec 20, 2011
Optical pickup apparatus
HOTTA TOHRU2 citations62
US8223614B2Jul 17, 2012
Method of manufacturing synthetic resin lens, method of manufacturing reformed synthetic resin material and optical pickup apparatus
HOTTA TOHRU0 citations51
US8184519B2May 22, 2012
Optical pickup apparatus
HOTTA TOHRU1 citations51
US8154978B2Apr 10, 2012
Optical pickup apparatus
HOTTA TOHRU1 citations50
US8339922B2Dec 25, 2012
Optical pickup apparatus
HOTTA TOHRU1 citations46
US8427924B2Apr 23, 2013
Optical pickup apparatus
HOTTA TOHRU0 citations41
US8305868B2Nov 6, 2012
Optical pickup apparatus
HOTTA TOHRU0 citations41
US8264939B2Sep 11, 2012
Optical pickup apparatus
HOTTA TOHRU0 citations41
US8213286B2Jul 3, 2012
Photodetector and optical pickup apparatus including the same
HOTTA TOHRU0 citations41
US8203926B2Jun 19, 2012
Optical pickup apparatus
HOTTA TOHRU0 citations41
US8179770B2May 15, 2012
Optical pickup apparatus
HOTTA TOHRU0 citations37
US8165003B2Apr 24, 2012
Optical pickup device
HOTTA TOHRU0 citations35
SANKYO SEIKI SEISAKUSHO KK
4 patentsUS6369963B1Apr 9, 2002
Optical pickup apparatus
SANKYO SEIKI SEISAKUSHO KK10 citations73
US6584061B2Jun 24, 2003
Optical pick-up device
SANKYO SEIKI SEISAKUSHO KK10 citations72
US6798819B1Sep 28, 2004
Optical pickup apparatus and method of manufacturing the same
SANKYO SEIKI SEISAKUSHO KK3 citations62
US6522619B2Feb 18, 2003
Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same
SANKYO SEIKI SEISAKUSHO KK4 citations60