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Inventor

Kohtaro Hayashi

Inventor
Toyonaka, JP

Overview

70→
Patents
1981–2014
Patent span
Physics
Primary field (CPC G)

Patents· 70 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary
G02BOptical elements, systems or apparatus38%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%
H04NPictorial communication, e.g. television18%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%
B29CShaping or joining of plastics4%
G05BControl or regulating systems in general3%
G06FElectric digital data processing2%
H10DInorganic electric semiconductor devices2%
G11CStatic stores1%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h101%
PatentTitleYear
8,696,133'Projection optical system and image projecting device'20148,425,044'Projection optical system'20138,319,257'Semiconductor device and layout design method therefor'20128,113,667'Projection optical system'20127,862,180'Optical system for image projection and image projection apparatus'20117,854,515'Projection type image display apparatus'20107,524,068'Projection optical system'20097,469,396'Semiconductor device and layout design method therefor'20087,286,290'Optical illumination apparatus'20077,075,615'Light separation device, blazed grating device, diffraction grating device, and illumination optical system'20067,012,758'Projection optical system and projecting apparatus provided with same'20066,880,937'Projection optical system and image projection apparatus'20056,791,750'Polarization beam splitter'20046,789,902'Projection optical system and projector using the same'20046,741,760'Image sensing apparatus which intentionally retains longitudinal chromatic aberration'20046,696,714'Multichip semiconductor device having a hip with redundancy restoration fuse that affects a redundant memory array'20046,624,952'Projection optical system'20036,624,862'Display optical apparatus having a rotary compensator to improve display contrast'20036,540,361'Display optical apparatus'20036,535,256'Color liquid crystal display device'20036,512,633'Optical system for compensation of image shake'20036,457,828'Display optical apparatus'20026,407,771'Camera having an image shift detecting function'20026,347,014'Illumination optical system and projection-type image display apparatus'20026,343,862'Projecting image display device'20026,315,415'Image projector'20016,304,381'Illumination optical apparatus'20016,285,502'Zoom lens system having an image blur compensation function'20016,278,552'Polarization separation device and projection-type display apparatus'20016,266,189'Zoom lens system having an image blur compensating function'20016,231,192'Projecting optical system'20016,226,459'Apparatus having a driven member and a drive controller therefor'20016,204,968'Zoom lens system having a camera shake compensating function'20016,193,376'Display apparatus'20016,188,524'Optical system for use in an image projector'20016,176,586'Projection display apparatus'20016,144,497'Projection optical system'20006,123,424'Optical system for use in an image projector'20006,116,739'Color projection display apparatus'20006,115,186'Scanning type image viewing optical system'20006,097,526'Scanning type image viewing optical system'20006,091,550'Optical system for use in an image projector'20006,085,039'Apparatus having a driven member and a drive controller therefor'20006,046,852'Lens system with image blur correction'20006,005,712'Zoom viewfinder system for single reflex camera'19996,002,519'Taking optical system having a hand-shake correction function'19995,973,836'Optical system having an optical system shake compensating function'19995,815,742'Apparatus having a driven member and a drive controller therefor'19985,627,622'Trimming camera'19975,585,965'Zoom viewfinder system for single reflex camera'19965,572,361'Binocular system with automatic diopter power adjustment'19965,387,999'Camera shake compensating optical system'19955,363,163'Finder optical system for pseudo focal length'19945,359,385'Camera having learning function'19945,291,233'Camera having an auto zoom function'19945,258,799'Auto focus camera with pseudo focal length mode'19935,255,030'Camera'19935,196,877'Viewfinder framing device for zoom lens camera'19935,194,886'Finder optical system'19935,170,204'Display system for displaying information in the viewfinder of a camera'19925,144,359'Aperture value determining device for a flash system'19925,086,353'Variable magnification viewfinder optical system'19925,051,769'Flash system'19915,023,649'Exposure controlling apparatus of a camera having a plurality of areas for measuring brightness'19915,019,854'Display system for displaying information in the viewfinder of a camera'19914,977,424'Light measuring device for camera'19904,341,729'Method and apparatus for making biaxially stretched tubular films'19824,299,793'Method and apparatus for producing tubular plastic films'19814,290,996'Method for initiating biaxial stretching of plastic tubes and apparatus therefor'19814,279,580'Apparatus for making biaxially stretched tubular films'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1982Based in Chiba, JP· patent location history
1990–1997Patents assigned to MINOLTA CAMERA KK (16)· patent assignee history
1990–1994Based in Osaka, JP· patent location history
1993–1997Based in Hirakata, JP· patent location history
1994–1996Based in Suita, JP· patent location history
1995–2007Patents assigned to MINOLTA CO LTD (38)· patent assignee history
1996–2014Based in Toyonaka, JP· patent location history
2005–2014Patents assigned to KONICA MINOLTA OPTO INC (8)· patent assignee history
2012–2014Patents assigned to HAYASHI KOHTARO (4)· patent assignee history
2012–2014Patents assigned to IMAOKA MASAYUKI (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINOLTA CO LTD381995–2007
MINOLTA CAMERA KK161990–1997
KONICA MINOLTA OPTO INC82005–2014
HAYASHI KOHTAROself42012–2014
IMAOKA MASAYUKI32012–2014
Locations
LocationPatentsSpan
Toyonaka, JP461996–2014
Osaka, JP91990–1994
Hirakata, JP51993–1997
Suita, JP31994–1996
Chiba, JP31981–1982