Inventor

Minoru Utsumi

Inventor

Tokyo, JP

Overview

1991–2002

Patent span

Physics

Primary field (CPC G)

Patents· 35 as inventor

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

G03Gprimary

G03GElectrography28%

G11BInformation storage based on relative movement between record carrier and transducer16%

H04NPictorial communication, e.g. television12%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

G06KGraphical data reading4%

G09FDisplaying4%

Y10TTechnical subjects covered by former us classification4%

C09KMaterials for miscellaneous applications, not provided for elsewhere3%

G03CPhotosensitive materials for photographic purposes3%

PatentTitleYear

6,493,013'Method for recording and reproducing information, apparatus therefor and recording medium'2002 6,025,857'Photosensitive member and electrostatic information recording method'2000 5,983,057'Color imaging system with selectively openable optical shutter'1999 5,981,123'Electrostatic information recording medium and electrostatic information recording and reproducing method'1999 5,731,116'Electrostatic information recording medium and electrostatic information recording and reproducing method'1998 5,718,996'Electrostatic information recording medium and electrostatic information recording and reproducing method'1998 5,683,838'Method of producing information recording medium'1997 5,672,453'Frost image recording medium and method of and apparatus for forming and reading frost image'1997 5,660,958'Information recording medium, and information recording and reproducing method'1997 5,650,247'Preparation and reproduction of filters and preparation of filter photographic materials'1997 5,646,927'Packaged photographic film with a plurality of liquid crystal recording regions'1997 5,638,103'Method for recording and reproducing information, apparatus therefor and recording medium'1997 5,635,317'Preparation and reproduction of filters and preparation of filter photographic materials'1997 5,629,920'Photoelectric sensor, information recording system, and information recording method'1997 5,587,264'Electrostatic information recording medium and electrostatic information recording and reproducing method'1996 5,571,646'Electrostatic information-recording media and process for recording and reproducing electrostatic information'1996 5,550,370'Potential sensor employing electrooptic crystal and potential measuring method'1996 5,521,040'Frost image recording medium and method of and apparatus for forming and reading frost image'1996 5,514,504'Information recording medium, and information recording a reproducing method'1996 5,492,783'Electrostatic information-recording media and process for recording and reproducing electrostatic information'1996 5,488,601'Photoelectric sensor, information recording system, and information recording method'1996 5,450,168'Moving image pickup device, medium for picking up moving images and process for picking up images continuously'1995 5,439,768'Electrostatic information recording medium and electrostatic information recording and reproducing method'1995 5,434,698'Potential sensor employing electrooptic crystal and potential measuring method'1995 5,424,156'Electrostatic information recording medium and method of recording and reproducing electrostatic information'1995 5,378,565'Frost image recording medium and method of and apparatus for forming and reading frost image'1995 5,373,348'Converting device including variable electroconductivity material, and recording and detecting method using the same'1994 5,298,947'Process for recording images on an electrostatic information recording medium with delayed disconnection of charge accumulation voltage'1994 5,224,090'Optical recording members and method for production thereof'1993 5,213,922'Electrostatic printing method'1993 5,192,634'A-selenium-tellurium photosensitive member and electrostatic information recording method'1993 5,192,631'Variable electroconductivity material'1993 5,165,343'Printing plate and printing process'1992 5,161,233'Method for recording and reproducing information, apparatus therefor and recording medium'1992 4,997,593'Variable electroconductivity material'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2002Patents assigned to DAINIPPON PRINTING CO LTD (35)· patent assignee history

1991–1994Based in Yokohama, JP· patent location history

1992–2002Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DAINIPPON PRINTING CO LTD	35	1991–2002

Locations

Location	Patents	Span
Tokyo, JP	31	1992–2002
Yokohama, JP	4	1991–1994