Inventor
EGUCHI MASARU
JP46 patents
⚠️ This page may combine multiple inventors who share the name “EGUCHI MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PENTAX CORP
16 patentsUS6790175B1Sep 14, 2004
Endoscope system
PENTAX CORP180 citations99
US6527708B1Mar 4, 2003
Endoscope system
PENTAX CORP101 citations98
US6498948B1Dec 24, 2002
Endoscope system
PENTAX CORP123 citations98
US6975461B2Dec 13, 2005
Zoom lens system
PENTAX CORP35 citations92
US6917476B2Jul 12, 2005
Zoom lens system
PENTAX CORP26 citations92
US6788861B1Sep 7, 2004
Endoscope system, scanning optical system and polygon mirror
PENTAX CORP40 citations92
US7142372B2Nov 28, 2006
Zoom lens system
PENTAX CORP9 citations74
US6853496B2Feb 8, 2005
Zoom lens system
PENTAX CORP10 citations74
US6657792B2Dec 2, 2003
Zoom lens system
PENTAX CORP8 citations74
US6600861B2Jul 29, 2003
Fiber bundle and endoscope apparatus
PENTAX CORP9 citations74
US6943961B2Sep 13, 2005
Zoom lens system and focus adjustment method thereof
PENTAX CORP4 citations63
US6829106B2Dec 7, 2004
High zoom-ratio zoom lens system
PENTAX CORP4 citations63
US6807015B2Oct 19, 2004
Focusing method for a zoom lens system
PENTAX CORP4 citations63
US6545820B2Apr 8, 2003
Zoom lens system
PENTAX CORP4 citations63
US6885507B2Apr 26, 2005
Zoom lens system which covers a wide angle range
PENTAX CORP1 citations52
US6958866B2Oct 25, 2005
Zoom lens system
PENTAX CORP0 citations42
HOYA CORP
10 patentsUS7791819B2Sep 7, 2010
Zoom lens system
HOYA CORP8 citations84
US7522349B2Apr 21, 2009
Wide-angle zoom lens system
HOYA CORP10 citations84
US11656456B2May 23, 2023
Optical element and optical apparatus
HOYA CORP2 citations72
US8730586B2May 20, 2014
Zoom lens system and electronic imaging apparatus provided with the same
HOYA CORP2 citations63
US8670184B2Mar 11, 2014
Zoom lens system and electronic imaging apparatus provided with the same
HOYA CORP2 citations63
US7808720B2Oct 5, 2010
Standard zoom lens system
HOYA CORP4 citations63
US7777965B2Aug 17, 2010
Zoom lens system
HOYA CORP6 citations63
US7952813B2May 31, 2011
Zoom lens system and electronic imaging apparatus that uses the same
HOYA CORP0 citations50
US7957071B2Jun 7, 2011
Focus adjustment method of zoom lens system
HOYA CORP0 citations42
US7830614B2Nov 9, 2010
Zoom lens system and electronic imaging apparatus that uses the same
HOYA CORP0 citations42
EGUCHI MASARU
8 patentsUS8830358B2Sep 9, 2014
High zoom-ratio zoom lens system and electronic imaging apparatus using the same
EGUCHI MASARU4 citations72
US8174774B2May 8, 2012
Zoom lens system
EGUCHI MASARU4 citations62
US8169720B2May 1, 2012
Rear focus wide-angle lens system and electronic imaging device using the same
EGUCHI MASARU5 citations62
US8105503B2Jan 31, 2012
Method of storing thermoresponsive polymer in state of aqueous solution
EGUCHI MASARU0 citations51
US8675278B2Mar 18, 2014
High zoom-ratio zoom lens system
EGUCHI MASARU0 citations41
US8264780B2Sep 11, 2012
High zoom-ratio zoom lens system
EGUCHI MASARU0 citations41
US8243371B2Aug 14, 2012
High zoom-ratio zoom lens system
EGUCHI MASARU0 citations41
US8699146B2Apr 15, 2014
Zoom lens system
EGUCHI MASARU0 citations39
ASAHI OPTICAL CO LTD
5 patentsUS6477403B1Nov 5, 2002
Endoscope system
ASAHI OPTICAL CO LTD206 citations99
US6456769B1Sep 24, 2002
Fiber bundle and endoscope apparatus
ASAHI OPTICAL CO LTD98 citations98
US6338711B1Jan 15, 2002
Stereoscopic endoscope
ASAHI OPTICAL CO LTD31 citations92
US5828498AOct 27, 1998
Objective lens of endoscope
ASAHI OPTICAL CO LTD43 citations92
US6469833B2Oct 22, 2002
Illumination optical system and an illumination lens element
ASAHI OPTICAL CO LTD7 citations74