Inventor

Tetsu Yamamuro

Inventor

Tokyo, JP

Overview

9→

Patents

1986–1990

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 9 as inventor

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

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests28%

G11BInformation storage based on relative movement between record carrier and transducer20%

B41JTypewriters12%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

C09JAdhesives4%

H04NPictorial communication, e.g. television4%

PatentTitleYear

4,954,534'Photodecomposing organosilicon compounds and photopolymerizable epoxy resin compositions containing the organosilicon compounds'1990 4,915,997'Optical information recording medium'1990 4,891,305'Optical information recording element'1990 4,865,949'Optical information recording medium'1989 4,758,499'Optical information recording medium'1988 4,711,798'Optical information recording medium'1987 4,700,203'Ink jet head for compressing ink to eject drops of ink'1987 4,607,267'Optical ink jet head for ink jet printer'1986 4,588,998'Ink jet head having curved ink'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1990Patents assigned to RICOH KK (9)· patent assignee history

1986–1990Based in Tokyo, JP· patent location history

1990Based in Yamato, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	9	1986–1990

Locations

Location	Patents	Span
Tokyo, JP	7	1986–1990
Yamato, JP	2	1990