Inventor

Toshiyuki Ehara

Inventor

Yokohama, JP

Overview

1988–2007

Patent span

Physics

Primary field (CPC G)

Patents· 37 as inventor

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

G03Gprimary

G03GElectrography69%

H04NPictorial communication, e.g. television8%

G06KGraphical data reading6%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%

F01CRotary-piston or oscillating-piston machines or engines2%

F04BPositive-displacement machines for liquids2%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids2%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines2%

G01RMeasuring electric variables2%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

7,211,357'Electrophotographic photosensitive member'2007 7,060,406'Light-receiving member, image-forming apparatus, and image-forming method'2006 7,033,717'Process for producing electrophotographic photosensitive member, and electrophotographic photosensitive member and electrophotographic apparatus making use of the same'2006 7,033,721'Method for producing electrophotographic photosensitive member, electrophotographic photosensitive member and electrophotographic apparatus using the same'2006 6,971,849'Compressor and aluminum members assembled by arc welding'2005 6,846,600'Electrophotographic photosensitive member, process for its production, and electrophotographic apparatus'2005 6,670,089'Electrophotographic image forming method and apparatus'2003 6,636,715'Photosensitive member and image forming apparatus having the same'2003 6,605,405'Electrophotographic method and electrophotographic apparatus'2003 6,586,149'Light-receiving member, image-forming apparatus, and image-forming method'2003 6,556,233'Electrophotographic apparatus and electrophotographic method featuring a photosensitive member having a linear EV characteristic'2003 6,534,228'Electrophotographic photosensitive member and image forming apparatus'2003 6,531,253'Electrophotographic photosensitive member and apparatus using same'2003 6,529,223'Image forming apparatus with light beam control'2003 6,333,755'Electrophotographic apparatus'2001 6,285,385'Electrophotographic method and apparatus which employs light beam irradiation to form an electrostatic image on a surface of a photosensitive member'2001 6,272,301'Image forming apparatus featuring a rotatable electroconductive foam member'2001 6,240,269'Image forming apparatus having a photosensitive member of amorphous silicon base and system for exposing and charging the photosensitive member'2001 6,122,467'Image forming apparatus using an amorphous silicon photosensitive member having a thin cylinder'2000 6,110,629'Electrophotographic, photosensitive member and image forming apparatus'2000 6,055,404'Cleaning device for electrophotographic apparatus, electrophotographic apparatus, method for cleaning light receiving member of electrophotographic apparatus, and electrophotographic process comprising the cleaning method'2000 5,983,043'Potential measuring apparatus and potential measuring method'1999 5,853,936'Light receiving member, substrate for said light receiving member, and electrophotographic apparatus having said light receiving member'1998 5,797,072'Apparatus and method for contact charging an amorphous silicon photoconductor via a mulipolar magnetic body having a magnetic brush layer'1998 5,732,313'Charge apparatus and image forming apparatus'1998 5,689,768'Electrophotographing apparatus for collecting toner from a photosensitive member and conveying it to developing means'1997 5,631,727'Image forming apparatus having discharging means using light source actuated prior to latent image formation'1997 5,561,021'Electrophotographic photosensitive member having a metal oxide material layer with an improved water repellency formed on the surface of a light receiving layer'1996 5,480,750'Electrophotographic process and electrophotographic apparatus'1996 5,392,098'Electrophotographic apparatus with amorphous silicon-carbon photosensitive member driven relative to light source'1995 5,358,811'Electrophotographic method using an amorphous silicon light receiving member with a latent image support layer and a developed image support layer and insulating toner having a volume average particle size of 4.5 to 9.0 micron'1994 5,112,709'Red reproduction-improving electrophotographic image-forming method using an amorphous silicon photosensitive member having a surface layer composed of a hydrogenated amorphous silicon carbide'1992 5,087,542'Electrophotographic image-forming method wherein an amorphous silicon light receiving member with a latent image support layer and a developed image support layer and fine particle insulating toner are used'1992 4,972,233'Apparatus and method for cleaning a photosensitive member with spherical magnetic particles'1990 4,952,978'Speed control of color development in electrophotographic process and apparatus'1990 4,851,865'Electrophotographic apparatus'1989 4,794,413'Image recording apparatus'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2007Patents assigned to CANON KK (36)· patent assignee history

1988–2006Based in Yokohama, JP· patent location history

1992–1997Based in Nagahama, JP· patent location history

2003–2007Based in Kanagawa, JP· patent location history

2005Patents assigned to SANYO ELECTRIC CO (1)· patent assignee history

2005Based in Ohta, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	36	1988–2007
SANYO ELECTRIC CO	1	2005

Locations

Location	Patents	Span
Yokohama, JP	23	1988–2006
Kanagawa, JP	9	2003–2007
Nagahama, JP	4	1992–1997
Ohta, JP	1	2005