Inventor
KOBAYASHI TOMOAKI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “KOBAYASHI TOMOAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
11 patentsUS5646790AJul 8, 1997
Zoom lens barrel
ASAHI OPTICAL CO LTD29 citations93
US5294954AMar 15, 1994
Rotatably controllable lens hood and cover unit
ASAHI OPTICAL CO LTD37 citations93
US5177641AJan 5, 1993
Structure for holding lens in lens holding member
ASAHI OPTICAL CO LTD101 citations93
US5159372AOct 27, 1992
Lens barrier
ASAHI OPTICAL CO LTD44 citations93
US6341902B1Jan 29, 2002
Photographic lens recognition system for a camera body
ASAHI OPTICAL CO LTD34 citations92
US6336754B1Jan 8, 2002
Setting communication system in accordance with type of lens attached to body
ASAHI OPTICAL CO LTD24 citations92
US5969889AOct 19, 1999
Lens barrel
ASAHI OPTICAL CO LTD32 citations92
US5410432AApr 25, 1995
Diaphragm mechanism of zoom lens barrel
ASAHI OPTICAL CO LTD21 citations92
US5434714AJul 18, 1995
Zoom lens barrel
ASAHI OPTICAL CO LTD14 citations82
US5636063AJun 3, 1997
Zoom lens barrel
ASAHI OPTICAL CO LTD5 citations74
US5450242ASep 12, 1995
Zoom lens barrel
ASAHI OPTICAL CO LTD10 citations74
PENTAX CORP
6 patentsUS7088523B2Aug 8, 2006
Lens body tube
PENTAX CORP14 citations84
US6829103B2Dec 7, 2004
Lens barrel
PENTAX CORP10 citations74
US7184228B2Feb 27, 2007
Lens body tube
PENTAX CORP4 citations63
US6714359B2Mar 30, 2004
Lens barrel and cam ring
PENTAX CORP6 citations63
US6709159B2Mar 23, 2004
Bearing structure
PENTAX CORP2 citations63
US7177102B2Feb 13, 2007
Lens body tube
PENTAX CORP0 citations42
SHOWA DENKO KK
5 patentsUS7329698B2Feb 12, 2008
Conductive curable resin composition and separator for fuel cell
SHOWA DENKO KK81 citations98
US5403539AApr 4, 1995
Method and apparatus for molding inflation film
SHOWA DENKO KK14 citations71
US7611643B2Nov 3, 2009
Electrically conducting resin composition for fuel cell separator and fuel cell separator
SHOWA DENKO KK2 citations63
US7338730B2Mar 4, 2008
Conductive curable resin composition and separator for fuel cell
SHOWA DENKO KK2 citations63
US7914720B2Mar 29, 2011
Electroconductive structure, manufacturing method therefor, and separator for fuel cell
SHOWA DENKO KK1 citations52
DEXERIALS CORP
4 patentsUS12541041B2Feb 3, 2026
Antireflection film
DEXERIALS CORP0 citations62
US12496792B2Dec 16, 2025
Production method for optical laminate
DEXERIALS CORP0 citations47
US12455403B2Oct 28, 2025
Optical laminate, article and method of manufacturing optical laminate
DEXERIALS CORP0 citations47
US12275226B2Apr 15, 2025
Method of manufacturing optical laminate
DEXERIALS CORP0 citations47
SANTOKU CHEMICAL IND CO LTD
3 patentsUS6783748B2Aug 31, 2004
Process for producing purified aqueous hydrogen peroxide solution
SANTOKU CHEMICAL IND CO LTD14 citations82
US6911481B2Jun 28, 2005
Method of regenerating ion exchange resin
SANTOKU CHEMICAL IND CO LTD8 citations71
US7368088B2May 6, 2008
Apparatus for producing purified aqueous hydrogen peroxide solution
SANTOKU CHEMICAL IND CO LTD1 citations50