LexDanaLexDanabeta
Inventor

Hiromichi Atsuumi

Inventor
Kanagawa, JP

Overview

69→
Patents
1993–2021
Patent span
Physics
Primary field (CPC G)

Patents· 69 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus61%
B41JTypewriters10%
G09GArrangements or circuits for control of indicating devices using static means to present variable information7%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
H04NPictorial communication, e.g. television5%
B81BMicrostructural devices or systems, e.g. micromechanical devices3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%
G06TImage data processing or generation, in general2%
H10HInorganic light-emitting semiconductor devices having potential barriers1%
PatentTitleYear
11,131,850Display apparatus and equipment202110,831,021Display device and including a screen concave mirror and flat mirror202010,783,606Image display apparatus and vehicle202010,613,321Image display apparatus202010,573,213Image display apparatus and vehicle202010,572,972Image display apparatus and vehicle202010,290,248Image display apparatus and vehicle201910,191,274Image display apparatus201910,078,217Image display device and apparatus20189,997,093Image display apparatus and vehicle20189,864,195'Image display apparatus'20189,013,802'Zoom lens, imaging device and information device'20158,982,474'Zoom lens and information device'20158,848,296'Zoom lens, imaging device, and portable digital device'20148,705,180'Zoom lens, imaging device and information device'20148,649,108'Zoom lens, camera device, and data terminal device'20148,638,503'Zoom lens and information device incorporating the same'20148,270,053'Holding mechanism for long length optical element, optical scanning device, and image forming device'20128,264,781'Zoom lens, information device, and imaging apparatus'20128,179,610'Zoom lens and information device'20128,054,559'Zoom lens, information device, and imaging apparatus'20117,933,074'Zoom lens unit and information device'20117,864,443'Zoom lens, imaging apparatus, and personal data assistant'20117,719,773'Zoom lens unit and imaging apparatus'20107,636,201'Zoom lens and camera device including the same'20097,616,384'Zoom lens and imaging apparatus'20097,525,710'Scanning and imaging optical system, optical scanner, and image forming apparatus with lenses of different signs and refractive index distribution increasing toward rim'20097,397,591'Optical scanner and image forming apparatus'20087,298,537'Optical scanner and image forming apparatus'20077,271,823'Optical scanner and image forming apparatus'20077,236,281'Optical scanner and image forming apparatus'20077,215,354'Scanning optical system, optical scanning device and image forming apparatus'20077,164,516'Optical scanner and image forming apparatus'20077,154,651'Optical scanning device and imaging apparatus implementing the same'20067,126,737'Optical scanning apparatus and image forming apparatus'20067,106,483'Optical scanner and image forming apparatus'20067,068,407'Optical element, optical scanner and image forming apparatus'20067,050,210'Optical scanning device and imaging apparatus implementing the same'20067,038,822'Optical element, optical scanner and image forming apparatus'20067,012,724'Optical scanning device having a temperature compensation unit'20067,006,120'Multi-beam optical scanning apparatus and image forming apparatus'20066,999,208'Optical scanner, optical scanning method, scanning image forming optical system, optical scanning lens and image forming apparatus'20066,961,164'Scanning optics with optical elements formed of resin and optical scanning device and image forming apparatus using the same'20056,937,371'Optical scanner and image formation apparatus'20056,829,104'Resin-made non-spherical optical element, optical scanning device using the optical element, and image forming apparatus using the optical scanning device'20046,801,351'Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus'20046,800,845'Multi-beam scanning device, multi-beam scanning method, light source device, and image forming apparatus'20046,791,729'Adjusting imaging position of optical beam spot in main and sub-scanning directions by individually and/or collectively adjusting position(s) of temperature-compensating lens(es)'20046,785,028'Optical scanning device having a temperature compensation unit'20046,781,729'Optical scanning system with unvarying image surface under environmental temperature change'20046,771,407'Optical scanner and image formation apparatus'20046,697,183'Light beam scanning apparatus and image forming system incorporating such apparatus'20046,606,179'Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus'20036,596,985'Multi-beam scanning device, multi-beam scanning method, light source device, and image forming apparatus'20036,509,995'Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus'20036,448,998'Scanning and imaging lens, optical scanning device and image forming apparatus'20026,417,509'Optical scanning apparatus and image forming apparatus'20026,388,792'Optical scanning device and image forming apparatus'20026,198,563'Optical scanning apparatus with improved design flexibility'20016,078,419'Optical scanning apparatus with design flexibility'20005,684,618'Image forming mirror for equal speed optical scan and optical scanner'19975,606,181'Edge emitting type light emitting diode array heads'19975,504,613'Optical scanner'19965,475,522'Optical scanner'19955,459,601'Optical scanner for reducing shading'19955,426,298'Optical scanner'19955,408,095'Optical scanner having an image forming mirror and means for reducing scanning line pitch irregularities'19955,355,244'Optical scanner for reducing shading'19945,233,454'Image forming reflecting mirror for constant speed optical scan and optical scanner'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2010Patents assigned to RICOH KK (45)· patent assignee history
1993–2015Based in Yokohama, JP· patent location history
1997–2021Based in Kanagawa, JP· patent location history
2004–2009Based in Tokyo, JP· patent location history
2011–2021Patents assigned to RICOH CO LTD (23)· patent assignee history
2012–2020Patents assigned to ATSUUMI HIROMICHI (14)· patent assignee history
2012–2015Patents assigned to TAKANO YOHEI (8)· patent assignee history
2018–2020Patents assigned to HAYASHI YUKI (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK451993–2010
RICOH CO LTD232011–2021
ATSUUMI HIROMICHIself142012–2020
TAKANO YOHEI82012–2015
HAYASHI YUKI42018–2020
Locations
LocationPatentsSpan
Kanagawa, JP351997–2021
Yokohama, JP291993–2015
Tokyo, JP52004–2009