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Inventor

Hiromitsu Yamakawa

Inventor
Saitama, JP

Overview

55→
Patents
1986–2021
Patent span
Physics
Primary field (CPC G)

Patents· 55 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus47%
H04NPictorial communication, e.g. television8%
B23KSoldering or unsoldering7%
B41JTypewriters6%
B29CShaping or joining of plastics5%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering5%
D06LDry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods5%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials5%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
PatentTitleYear
11,050,212Laser machining device and laser oscillator20219,599,789'Imaging lens and imaging apparatus'20179,519,121'Imaging lens and imaging apparatus'20169,417,437'Imaging lens and imaging apparatus'20169,036,269'Imaging lens and imaging apparatus'20158,922,910'Imaging lens and imaging apparatus'20148,611,024'Image pickup lens and image pickup apparatus'20138,379,326'Imaging lens and imaging apparatus'20138,331,042'Imaging lens and imaging apparatus'20128,270,097'Imaging lens and imaging apparatus'20128,194,330'Imaging lens and imaging apparatus'20128,189,271'Imaging lens and imaging apparatus'20127,595,938'Wide-angle imaging lens, imaging device and camera module'20097,518,809'Ultra wide-angle imaging lens device and imaging apparatus'20097,443,779'Objective optical system for optical recording media and optical pickup device using it'20087,444,047'Multiplexing optical system'20087,280,289'Wide angle imaging lens'20077,112,760'Laser annealer and laser thin-film forming apparatus'20067,095,921'Laser apparatus, exposure head, exposure apparatus, and optical fiber connection method'20067,079,169'Exposure head, exposure apparatus, and application thereof'20067,077,972'Exposure head, exposure apparatus, and application thereof'20067,048,528'Exposure head, exposure apparatus, and application thereof'20067,035,018'Imaging lens'20067,015,488'Exposure head, exposure apparatus, and application thereof'20066,999,246'Image scanning lens and image scanning device that uses same'20066,995,912'Condensing lens, optically-multiplexed-laser-light source, and exposure system'20066,960,035'Laser apparatus, exposure head, exposure apparatus, and optical fiber connection method'20056,894,712'Exposure head, exposure apparatus, and application thereof'20056,842,295'Imaging lens formed of aperture diaphragm and only two lens components'20056,754,007'One-dimensional optical condensing system, optical lighting system for correcting light intensity distribution, and exposure head'20046,600,609'Inner-focus-type lens'20036,593,559'Image readout apparatus and image readout method using the same'20036,577,451'Rear conversion lens'20036,559,998'Optical scanning apparatus'20036,366,364'Image readout apparatus'20026,320,704'Image readout lens and image readout apparatus using the same'20016,310,734'Imaging lens and image readout apparatus using the same'20016,295,169'Image readout lens and image readout apparatus using the same'20016,178,030'Light-scanning optical system having wobble-correcting function and light-scanning apparatus using the same'20016,088,167'Optical scanning apparatus'20006,018,410'Image readout imaging lens and image readout apparatus'20005,969,883'Imaging lens and optical apparatus using the same'19995,959,788'Image readout lens with small chromatic aberration and image readout apparatus'19995,936,783'Image readout lens and image readout apparatus using the same'19995,923,358'Laser printer apparatus'19995,757,534'Light scanning optical system and apparatus using the same'19985,682,258'F. .theta. lens for optical scanning system'19975,671,094'Zoom lens system in finite conjugate distance'19975,596,452'Collimator lens system'19975,506,729'Copy lens'19965,493,449'Imagery lens system'19965,343,325'Optical scanning system with tilt correction function'19945,309,270'Optical scanning system'19945,206,755'Optical beam scanner'19934,632,520'Plastic objective lens system adapted for correction for temperature'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2006Patents assigned to FUJI PHOTO OPTICAL CO LTD (30)· patent assignee history
1986–1994Based in Ohmiya, JP· patent location history
1993–2003Based in Omiya, JP· patent location history
1996–2017Based in Saitama, JP· patent location history
2004–2006Patents assigned to FUJI PHOTO FILM CO LTD (3)· patent assignee history
2006–2009Patents assigned to FUJINON CORP (10)· patent assignee history
2008–2017Patents assigned to FUJIFILM CORP (12)· patent assignee history
2012–2013Patents assigned to YAMAKAWA HIROMITSU (6)· patent assignee history
2021Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO OPTICAL CO LTD301986–2006
FUJIFILM CORP122008–2017
FUJINON CORP102006–2009
YAMAKAWA HIROMITSUself62012–2013
FUJI PHOTO FILM CO LTD32004–2006
Locations
LocationPatentsSpan
Saitama, JP341996–2017
Omiya, JP171993–2003
Ohmiya, JP31986–1994
Osaka, JP12021