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Inventor

Hideo Kanai

Inventor
Tokyo, JP

Overview

59→
Patents
1987–2019
Patent span
Physics
Primary field (CPC G)

Patents· 59 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them44%
H04NPictorial communication, e.g. television29%
G02BOptical elements, systems or apparatus13%
F21VFunctional features or details of lighting devices or systems thereof2%
A61BDiagnosis1%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids1%
F21KNon-electric light sources using luminescence1%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted1%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact1%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application1%
PatentTitleYear
10,277,871Image formation unit and image projection apparatus201910,036,943Light source device, image projector, and method for disposing light source device201810,012,893Image projection apparatus20189,964,733Holding structure for holding reflecting mirror, projection optical system unit, optical engine, and image projecting apparatus20189,961,310Image projection apparatus20189,952,486High resolution image projection apparatus with horizontally actuated image generation unit20189,864,262'Image projection device and image projection method to control an illumination area based on movement of image generating unit'20189,829,671Projection lens unit, optical engine, and image projecting apparatus20179,787,956'Image projection apparatus'20179,778,551'Illumination optical system, optical engine, and image projection apparatus'20179,713,282'Cooling apparatus, image projection apparatus, and electronic device'20179,678,416'Light source device provided with cooler and image projection device including light source device provided with cooler'20179,671,681'Image projection apparatus'20179,645,478'Cooling device, image projection apparatus, and electronic apparatus'20179,625,797'Projection optical device and image projection apparatus'20179,618,833'Image projection apparatus'20179,606,426'Duct cover for an image projection apparatus'20179,541,818'Cooling device, cooling structure, image projection device, and electronic device'20179,541,821'Light source housing, light source device, and image projection apparatus'20179,537,257'Image projection apparatus and light source unit'20179,525,840'Image projection apparatus and circuit-board retaining structure'20169,436,070'Image Projection apparatus'20169,429,828'Image projection apparatus'20169,423,677'Cooling structure, image projection apparatus, electronic device, and cooling device'20169,423,676'Lighting unit and image projector'20169,417,510'Image projection device and method of controlling image projection device'20169,411,216'Projector with intake ducts provided in a case thereof'20169,390,871'Switch mechanism and electronic device'20169,348,201'Image projection apparatus'20169,329,463'Image projection apparatus'20169,304,381'Image projection apparatus'20169,291,883'Image projection apparatus'20169,274,409'Image projection apparatus'20169,244,247'Auto-focus device, projection lens device, and image projection apparatus'20169,206,804'Compressor for vehicle with reduced vibrations'20159,207,521'Image projection apparatus'20159,128,359'Electronic device and image projection apparatus'20159,110,360'Image projection apparatus'20159,104,093'Illumination optical system and image projection device'20159,091,908'Image projection apparatus'20159,086,615'Image projection apparatus'20159,075,297'Image projection apparatus'20159,052,580'Outer housing for an image projection apparatus'20159,039,191'Image projection apparatus'20159,033,514'Image projection apparatus'20159,016,868'Image projection apparatus'20159,010,939'Image projection apparatus'20159,010,940'Image projection apparatus'20159,004,696'Image projection apparatus'20159,004,697'Image projection apparatus'20158,998,425'Image projection apparatus'20158,992,030'Image projection apparatus'20158,985,786'Image projection apparatus'20158,882,277'Image projection apparatus'20147,481,540'Projection display device and cooling structure'20097,237,906'Projection-type image display apparatus'20076,832,837'Projection display device and air blowing device'20045,690,851'Induction heating apparatus for drink can'19974,694,571'Apparatus for automatically changing X-ray films'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Based in Shimada, JP· patent location history
2004–2009Based in Ome, JP· patent location history
2007–2019Based in Tokyo, JP· patent location history
2014–2019Patents assigned to RICOH CO LTD (50)· patent assignee history
2014–2019Patents assigned to KANAI HIDEO (39)· patent assignee history
2014–2019Patents assigned to FUJIOKA TETSUYA (36)· patent assignee history
2014–2017Patents assigned to YAMADA MASAMICHI (30)· patent assignee history
2014–2017Patents assigned to ISHIKAWA NAOYUKI (29)· patent assignee history
2015Based in Kariya, JP· patent location history
2018Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD502014–2019
KANAI HIDEOself392014–2019
FUJIOKA TETSUYA362014–2019
YAMADA MASAMICHI302014–2017
ISHIKAWA NAOYUKI292014–2017
Locations
LocationPatentsSpan
Tokyo, JP532007–2019
Ome, JP22004–2009
Kanagawa, JP12018
Kariya, JP12015
Shimada, JP11997