Inventor

Mitsuaki Kohyama

Inventor

Tokyo, JP

Overview

1981–2000

Patent span

Physics

Primary field (CPC G)

Patents· 44 as inventor

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

G03Gprimary

G03GElectrography75%

B41JTypewriters8%

B82YSpecific uses or applications of nanostructures4%

G06KGraphical data reading4%

G06FElectric digital data processing2%

G07CTime or attendance registers2%

H01TSpark gaps2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

Y10TTechnical subjects covered by former us classification2%

PatentTitleYear

6,126,274'Image recording apparatus having an intermediate image receiving means for a variable electric field to eject toner particles'2000 5,808,638'Image forming apparatus in which a potential well is formed in an electrode to obtain stable recording'1998 5,424,523'Record medium and record medium processing apparatus'1995 5,317,370'Developing apparatus including means for collecting used developing agent'1994 5,233,395'Image forming apparatus having a transfer brush of electroconductive fibers'1993 5,221,946'Image forming apparatus'1993 5,177,323'Developing device for developing an electrostatic latent image by a one-component developing agent'1993 5,148,218'Image forming apparatus with a humidity detector'1992 5,148,219'Image forming apparatus with developing and cleaning system'1992 5,122,838'Image forming apparatus for developing a latent image on an image carrying body with a one component developing agent and simultaneously removing residual developing agent from the image carrying body'1992 5,114,823'Developing method for electrostatic images'1992 5,103,265'Image forming apparatus with a developing and removing device'1992 5,021,808'Laser actuated recording apparatus'1991 4,992,830'Image recording apparatus that prevents toner dispersion'1991 4,935,782'Image forming apparatus using a developer including invisible and colored particles'1990 4,841,335'Recording apparatus and method'1989 4,836,135'Developing apparatus having one-component developing agent'1989 4,736,255'Recording apparatus'1988 4,725,860'Ink carrier film in use with ink jet recording device'1988 4,688,923'Developing apparatus'1987 4,686,934'Developing device'1987 4,674,441'Developing apparatus'1987 4,671,641'Developing apparatus'1987 4,653,426'Developing apparatus'1987 4,647,181'Electrophotographic method and apparatus using alternating current corona charging'1987 4,645,330'Electrophotographic device'1987 4,616,918'Developing apparatus'1986 4,611,901'Electrophotographic method and apparatus'1986 4,607,934'Electrophotography using a photosensitive drum with multi-photosensitive layers sensitive to different wave lengths'1986 4,596,455'Developing apparatus'1986 4,586,460'Developing apparatus'1986 4,579,081'Developing apparatus'1986 4,519,698'Image forming apparatus including a cleaning blade and drum lubricant'1985 4,515,106'Developing apparatus'1985 4,508,052'Developing device'1985 4,472,046'Image density detecting device for image forming apparatus'1984 4,413,897'Electrostatic copying apparatus'1983 4,398,817'Magnetic developer apparatus for applying two different colored toners with the same applicator'1983 4,378,153'Electronic duplicator'1983 4,363,550'Recording sheet separating device in a transfer-type electronic copying machine'1982 4,360,261'Exposure apparatus for copying machines'1982 4,341,460'Electronic copying machine'1982 4,322,156'Charging apparatus for copying machine'1982 4,295,443'Developing apparatus for electrostatic copying machine'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to TOSHIBA CORP (1)· patent assignee history

1981–1992Based in Higashikurume, JP· patent location history

1982–1987Patents assigned to TOKYO SHIBAURA ELECTRIC CO (13)· patent assignee history

1982Based in Higashikure, JP· patent location history

1984–2000Based in Tokyo, JP· patent location history

1986–1998Patents assigned to TOSHIBA KK (29)· patent assignee history

2000Patents assigned to KABUSHIKI KAISHIA TOSHIBA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	29	1986–1998
TOKYO SHIBAURA ELECTRIC CO	13	1982–1987
KABUSHIKI KAISHIA TOSHIBA	1	2000
TOSHIBA CORP	1	1981

Locations

Location	Patents	Span
Tokyo, JP	27	1984–2000
Higashikurume, JP	16	1981–1992
Higashikure, JP	1	1982