Inventor

Koichiro Jinnai

Inventor

Kawasaki, JP

Overview

1979–1993

Patent span

Performing operations

Primary field (CPC B)

Patents· 30 as inventor

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

B41Jprimary

B41JTypewriters65%

G01DMeasuring not specially adapted for a specific variable16%

H04NPictorial communication, e.g. television7%

Y10TTechnical subjects covered by former us classification5%

B41FPrinting machines or presses2%

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

G03GElectrography2%

PatentTitleYear

5,208,612'Image recording apparatus constituting of selectable units'1993 4,642,653'Multi-tone recording method for ink jet printer'1987 4,626,874'Liquid level detector for ink jet printer'1986 4,604,631'Control system and method for charge control ink jet printer'1986 4,598,299'Deflection control ink jet printing apparatus'1986 4,595,948'Multicolor ink jet recording apparatus having means for preventing blurring of ink'1986 4,562,442'Ink-jet printing apparatus'1985 4,542,385'Ink jet printing apparatus'1985 4,527,170'Ink jet waste and replenish ink system'1985 4,521,789'Ink viscosity regulation for ink jet printer'1985 4,499,475'Ink jet printing apparatus'1985 4,491,852'Ink jet printing apparatus using guard drops'1985 4,438,440'Print-distortion compensating device for the ink jet printing apparatus'1984 4,437,101'Ink jet printing apparatus'1984 4,393,385'Controllable ink drop velocity type ink-jet printer'1983 4,371,878'Device for correcting ink dot misplacement in ink-jet printing'1983 4,369,964'Sheet feed apparatus for printer or the like'1983 4,365,255'Ink jet printer'1982 4,364,060'Nozzle position deviation compensation arrangement for ink jet printing device'1982 4,358,775'Ink jet printing apparatus'1982 4,328,505'Ink jet printing apparatus'1982 4,313,123'Controllable ink drop velocity type ink-jet printer'1982 4,293,865'Ink-jet recording apparatus'1981 4,290,073'Ink-jet recording apparatus'1981 4,288,797'Variable-charge type ink-jet printer'1981 4,231,048'Ink jet recording apparatus'1980 4,231,047'Ink-jet printing method and device therefor'1980 4,228,440'Ink jet printing apparatus'1980 4,217,595'Charging phase control device for ink jet recording device'1980 4,178,595'Ink jet printing apparatus with ink replenishing'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1993Patents assigned to RICOH KK (29)· patent assignee history

1979–1985Based in Tokyo, JP· patent location history

1980Patents assigned to KODAMA YUTAKA (1)· patent assignee history

1980–1993Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	29	1979–1993
KODAMA YUTAKA	1	1980

Locations

Location	Patents	Span
Kawasaki, JP	21	1980–1993
Tokyo, JP	9	1979–1985