P

Inventor

IIZUKA TAKASHI

JP133 patents
⚠️ This page may combine multiple inventors who share the name “IIZUKA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ASAHI OPTICAL CO LTD

38 patents
US6113240ASep 5, 2000

Reflection type projector

ASAHI OPTICAL CO LTD60 citations96
US6473233B1Oct 29, 2002

Multi-beam optical system

ASAHI OPTICAL CO LTD25 citations93
US6310726B1Oct 30, 2001

Image projecting device

ASAHI OPTICAL CO LTD22 citations93
US6264333B1Jul 24, 2001

Reflection type projector

ASAHI OPTICAL CO LTD22 citations93
US6219169B1Apr 17, 2001

Beam shape compensation optical system

ASAHI OPTICAL CO LTD21 citations93
US6104521AAug 15, 2000

Scanning optical systems

ASAHI OPTICAL CO LTD19 citations93
US5963355AOct 5, 1999

Optical scanning system with single element refractive/reflective Fθlθ lens

ASAHI OPTICAL CO LTD21 citations93
US5892611AApr 6, 1999

Laser drawing apparatus

ASAHI OPTICAL CO LTD26 citations93
US5790275AAug 4, 1998

Scanning optical system

ASAHI OPTICAL CO LTD32 citations93
US5745296AApr 28, 1998

Multibeam recording device

ASAHI OPTICAL CO LTD28 citations93
US5737112AApr 7, 1998

Scanning optical systems

ASAHI OPTICAL CO LTD25 citations93
US5677798AOct 14, 1997

Image forming lens system

ASAHI OPTICAL CO LTD36 citations93
US5648865AJul 15, 1997

Scanning optical system

ASAHI OPTICAL CO LTD45 citations93
US5646767AJul 8, 1997

Scanning optical system

ASAHI OPTICAL CO LTD39 citations93
US5541760AJul 30, 1996

Scanning optical system

ASAHI OPTICAL CO LTD28 citations93
US5412510AMay 2, 1995

Imaging optical system for compensating change of temperature

ASAHI OPTICAL CO LTD46 citations93
US5283599AFeb 1, 1994

Apparatus for combining and projecting images

ASAHI OPTICAL CO LTD40 citations93
US5278698AJan 11, 1994

Magnifying projecting lens

ASAHI OPTICAL CO LTD37 citations93
US5251069AOct 5, 1993

Imaging lens system

ASAHI OPTICAL CO LTD31 citations93
US5220450AJun 15, 1993

Scanning optical system capable of automatic focusing

ASAHI OPTICAL CO LTD43 citations93
US5200850AApr 6, 1993

Anamorphic optical system

ASAHI OPTICAL CO LTD31 citations93
US5189546AFeb 23, 1993

Scanning optical system with offset lens component

ASAHI OPTICAL CO LTD36 citations93
US5179398AJan 12, 1993

Projector and image adjustment method

ASAHI OPTICAL CO LTD28 citations93
US5046795ASep 10, 1991

Apparatus for producing a distortion-free two-dimensional image of a scanned object

ASAHI OPTICAL CO LTD22 citations93
US4998790AMar 12, 1991

Optical scanning apparatus

ASAHI OPTICAL CO LTD26 citations93
US4981352AJan 1, 1991

Projection display device

ASAHI OPTICAL CO LTD22 citations93
US6115146ASep 5, 2000

Scanning-type image reading device

ASAHI OPTICAL CO LTD34 citations92
US5909300AJun 1, 1999

Scanning apparatus having a cascade scanning optical system

ASAHI OPTICAL CO LTD30 citations92
US5828479AOct 27, 1998

Cascade scanning optical system

ASAHI OPTICAL CO LTD33 citations92
US5798784AAug 25, 1998

Laser drawing apparatus featuring a beam separator supported by an adjusting means swingable about a rotating shaft

ASAHI OPTICAL CO LTD31 citations92
US6091533AJul 18, 2000

Reflection type scanning optical system

ASAHI OPTICAL CO LTD18 citations84
US6021000AFeb 1, 2000

Beam splitting diffractive optical element

ASAHI OPTICAL CO LTD14 citations82
US5572353ANov 5, 1996

Laser scanning device

ASAHI OPTICAL CO LTD18 citations82
US6469831B2Oct 22, 2002

Multibeam optical system

ASAHI OPTICAL CO LTD8 citations74
US6388811B1May 14, 2002

Diffractive optical element including a diffractive grating pattern

ASAHI OPTICAL CO LTD5 citations74
US6288831B1Sep 11, 2001

Laser modulating optical system

ASAHI OPTICAL CO LTD11 citations74
US6212010B1Apr 3, 2001

Diffractive optical element including a diffractive grating pattern

ASAHI OPTICAL CO LTD7 citations74
US6166843ADec 26, 2000

Optical scanning system with single element refractive/reflective fθ lens and single element refractive/reflective fθ lens

ASAHI OPTICAL CO LTD13 citations74

PENTAX CORP

4 patents

CANON KK

4 patents

AJINOMOTO KK

2 patents

SEGA ENTERPRISES KK

1 patent

HYMO CORP

1 patent

Showing the top 50 of 133 patents by PatentIndex Score.