Inventor

Masatoshi Itoh

Inventor

Mishima, JP

Overview

1982–2020

Patent span

Physics

Primary field (CPC G)

Patents· 50 as inventor

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

G03Gprimary

G03GElectrography22%

G02BOptical elements, systems or apparatus16%

H04NPictorial communication, e.g. television13%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them7%

G06FElectric digital data processing7%

G06KGraphical data reading5%

G09GArrangements or circuits for control of indicating devices using static means to present variable information5%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

PatentTitleYear

10,663,896Fixing device and image forming apparatus2020 10,452,883Information acquisition system, communication terminal, information acquisition program, server, and information provision program2019 10,303,091Voltage detection apparatus and image forming apparatus2019 10,223,625Two-dimensional code generation device and two-dimensional code generation program product2019 10,157,300Information provision system, communication terminal, and information provision program2018 10,069,435Power supply apparatus and image forming apparatus2018 9,940,565Two-dimensional code generation device and two-dimensional code generation program product2018 9,823,617'Power supply apparatus and image forming apparatus'2017 9,665,048'Image forming apparatus having a temperature setting portion to control a target temperature'2017 9,606,482'Fixing apparatus'2017 9,575,456'Image forming apparatus having fixing portion including independently controllable first and second heat generating elements'2017 9,535,379'Image forming apparatus with warmup power control and connectable option device'2017 9,501,010'Fixing apparatus'2016 9,372,451'Fixing device'2016 9,348,277'Fixing apparatus'2016 9,335,709'Image forming apparatus setting a control target temperature of a fixing portion, fixing an image on recording material, depending on a calculated suppliable electric power suppliable to a heater of the fixing portion'2016 9,298,141'Image heating device'2016 9,291,932'Image forming apparatus having misregistration correction'2016 9,285,742'Image forming apparatus to adjust the amount of light exposed by an exposure unit'2016 9,223,265'Image forming apparatus with option device detection and fixing warm up mode selection'2015 8,654,049'Liquid crystal display device'2014 8,548,341'Image forming apparatus provided with mechanism for cleaning image carrier'2013 7,199,602'Inspection method and inspection device for display device and active matrix substrate used for display device'2007 6,891,532'Apparatus and method for inspecting picture elements of an active matrix type display board'2005 6,847,223'Method and device for inspection active matrix substrate'2005 6,633,135'Apparatus and method for evaluating organic EL display'2003 6,249,653'Image recording device having a ground connector'2001 6,072,481'Electronic catalog data creating and/or displaying apparatus and method'2000 6,035,292'Interactively building and executing knowledge base system with knowledge variables'2000 5,493,640'Method and apparatus for image filling of a continuous contour figure'1996 5,398,095'Automatic zooming device'1995 5,331,961'Scintillation probe and intra-tube cavity insertable radioactive ray detecting apparatus'1994 5,258,798'Camera'1993 5,225,940'In-focus detection apparatus using video signal'1993 5,204,710'Camera having zoom lens system'1993 5,157,432'Camera having a zoom lens unit'1992 5,140,360'Camera having a zoom lens system'1992 5,097,282'Automatic focusing apparatus'1992 5,001,507'Focus detection condition display device for camera'1991 4,994,842'Camera having a converter-attachable zoom lens'1991 4,935,763'Camera having a zoom lens unit'1990 4,901,930'Winding apparatus for deflection yoke'1990 4,847,650'Camera'1989 4,843,456'White balance adjusting device for a color video camera'1989 4,816,860'Camera'1989 4,812,912'Focus detection condition display device for camera'1989 4,422,743'Exposure system for a camera'1983 4,354,751'Exposure system for a camera'1982 4,344,680'Photographic devices for controlling flash photography'1982 4,337,996'Lens mount support for self-extending camera'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1995Patents assigned to MINOLTA CAMERA KK (18)· patent assignee history

1982–1983Based in Sakai, JP· patent location history

1989–2014Based in Osaka, JP· patent location history

1989–2001Based in Takatsuki, JP· patent location history

2000Patents assigned to COMNES CO LTD (2)· patent assignee history

2003–2007Patents assigned to WINTEST CORP (4)· patent assignee history

2013–2020Patents assigned to CANON KK (17)· patent assignee history

2015–2020Based in Mishima, JP· patent location history

2018–2019Patents assigned to DENSO CORP (4)· patent assignee history

2018–2019Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MINOLTA CAMERA KK	18	1982–1995
CANON KK	17	2013–2020
DENSO CORP	4	2018–2019
WINTEST CORP	4	2003–2007
COMNES CO LTD	2	2000

Locations

Location	Patents	Span
Mishima, JP	16	2015–2020
Osaka, JP	9	1989–2014
Takatsuki, JP	7	1989–2001
Kariya, JP	4	2018–2019
Sakai, JP	4	1982–1983