Inventor

Tatsuo Aizawa

Inventor

Osaka, JP

Overview

1976–1985

Patent span

Physics

Primary field (CPC G)

Patents· 55 as inventor

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

G03Gprimary

G03GElectrography57%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%

Y10TTechnical subjects covered by former us classification13%

G03CPhotosensitive materials for photographic purposes6%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%

G01DMeasuring not specially adapted for a specific variable2%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them1%

G03DApparatus for processing exposed photographic materials1%

H01TSpark gaps1%

PatentTitleYear

4,533,618'Method for transferring toner image'1985 4,430,410'Method and apparatus for developing latent electrostatic images'1984 4,415,645'Developer for electrophotography and process for preparation thereof'1983 4,388,396'Electrophotographic process of developing and transfering images uses fluorine containing offset preventing agent in developer'1983 4,380,196'Plate for lithography or offset printing'1983 4,380,579'Electrostatic copying process and apparatus'1983 4,370,379'Method for preparing original for projection and transfer film for electrostatic photography for use in carrying out said method'1983 4,357,406'Developer for electrophotography and process for preparation thereof'1982 4,349,611'Thermosensitive recording material'1982 4,333,967'Process of making a thermosensitive recording material'1982 4,328,265'Process for preparation of a transfer sheet for electrostatic photography or printing'1982 4,320,186'Electrographic method for preparing original for projection and transfer film for use in method'1982 4,314,018'Cleaning process for an electrostatic copying apparatus'1982 4,286,861'Electrostatic copying process and apparatus'1981 4,267,246'Pressure or heated roller electrophoto image fixing uses halogen or nitrile containing polymer dispersed within resin binder as offset prevent toner'1981 4,265,992'Coated magnetic developer particles for electrophotography containing vinyl and olefin resins'1981 4,264,698'Developer for electrostatic photography and process for preparation thereof'1981 4,259,008'Electrostatic copying apparatus'1981 4,254,202'Electrostatic copying process'1981 4,245,025'Transfer sheet and process for preparation thereof'1981 4,233,386'Method of removing residual toner from surface of photoconductive member for use in electrostatic copying apparatus of the transfer type'1980 4,232,101'Photosensitive paper for electrophotography with an electrically conductive coating of a fluorine resin'1980 4,226,928'Laminated photosensitive material for electrophotography'1980 4,214,907'Photosensitive material for electrophotography having a polyvinyl carbazole derivative, phthalocyanine, and an electron-acceptor'1980 4,199,356'Electrophotographic process, of transferring a magnetic toner to a copy member having at least 3.times.10.sup.13 ohm-cm resistance'1980 4,197,003'Switch device in electrostatic photographic copying machine'1980 4,181,424'Method of and means for synchronously transferring original and copying paper for electrostatic photoduplication'1980 4,179,211'Electrostatic photographic copying machine'1979 4,168,338'Transfer sheet with toner-receiving layer of thermoplastic and thermosetting polymers'1979 4,168,165'Electrophotographic photosensitive material suitable for offset printing and lithography and process for production thereof'1979 4,147,426'Electrostatic photographic copying machine'1979 4,126,100'Apparatus for causing a developer powder to make an irregular motion in a developing zone'1978 4,123,271'Alkali metal dichromate as memory resistance improver for zinc oxide photoconductors in electrostatic photography'1978 4,108,786'Magnetic dry developer for electrostatic photography and process for preparation thereof'1978 4,100,087'Pressure-fixing magnetic developer containing hydrogenated polystyrene binder for electrostatic photography and process for preparation thereof'1978 4,096,543'Corona discharge device with grid grounded via non-linear bias element'1978 4,082,681'Magnetic developer for electrostatic photography and process for preparation thereof'1978 4,081,571'Method for developing electrostatic latent images'1978 4,051,052'Liquid developer'1977 4,045,165'Contact heat fixing device'1977 4,040,387'Electrostatic photographic copying apparatus'1977 4,033,689'Compact optical system for an electrostatic photographic copying apparatus'1977 4,017,175'Apparatus for preventing successive jamming of copy sheets in copying apparatus'1977 4,013,357'Copying machine in which, paper jamming at copying paper cutting mechanism is prevented'1977 4,012,138'Electrostatic photographic copying apparatus'1977 4,012,139'Electrostatic copying apparatus having copy paper cut length control'1977 3,981,730'Diazo-type multicolor reproduction process'1976 3,976,488'Treating agent for diazo-type multicolor reproduction'1976 3,958,880'Copying machine of the diazo type'1976 3,950,171'Diazotype multicolor reproduction process'1976 3,950,090'Electrophotographic copying machine'1976 3,948,661'Process for diazo-type multicolor reproduction'1976 3,947,114'Electrostatic copying machine'1976 3,944,422'Photosensitive material in use for diazo-type multicolor reproduction'1976 3,930,850'Process for electrophotographic copying by transfer of electrostatic images'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1985Patents assigned to MITA INDUSTRIAL CO LTD (53)· patent assignee history

1976–1983Patents assigned to AIZAWA TATSUO (2)· patent assignee history

1976–1985Based in Osaka, JP· patent location history

1976–1983Based in Higashisumiyoshi-ku, Osaka, JP· patent location history

1976Based in Kuwatsu, JA· patent location history

1976Based in Kuwata, JA· patent location history

1983Patents assigned to IKEDA TOSHIMITSU (1)· patent assignee history

1983Patents assigned to KOZUKA NOBUHIKO (1)· patent assignee history

1983Patents assigned to MATSUI TOSHIKAZU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITA INDUSTRIAL CO LTD	53	1976–1985
AIZAWA TATSUOself	2	1976–1983
IKEDA TOSHIMITSU	1	1983
KOZUKA NOBUHIKO	1	1983
MATSUI TOSHIKAZU	1	1983

Locations

Location	Patents	Span
Osaka, JP	51	1976–1985
Higashisumiyoshi-ku, Osaka, JP	2	1976–1983
Kuwatsu, JA	1	1976
Kuwata, JA	1	1976