Inventor

Shigekazu Sakai

Inventor

Tokyo, JP

Overview

6→

Patents

1989–2015

Patent span

Performing operations

Primary field (CPC B)

Patents· 6 as inventor

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

B41Fprimary

B41FPrinting machines or presses17%

B41JTypewriters17%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers8%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them8%

G03CPhotosensitive materials for photographic purposes8%

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

H01RElectrically-conductive connections8%

H05KPrinted circuits8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

9,039,131'Method for producing inkjet head, inkjet head, method for producing inter-member electrification structure, and inter-member electrification structure'2015 8,979,246'Inkjet head unit and inkjet recording device'2015 5,944,186'Roll-like photosensitive material packing body'1999 5,370,227'Cartridge container'1994 5,070,782'Screen printer'1991 4,876,957'Apparatus for applying an emulsion screen film of screen-printing'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to TOKAI SEIKI KK (2)· patent assignee history

1989–1991Based in Gifu, JP· patent location history

1994–1999Patents assigned to KONISHIROKU PHOTO IND (2)· patent assignee history

1994–1999Based in Hino, JP· patent location history

2015Patents assigned to KONICA MINOLTA INC (2)· patent assignee history

2015Patents assigned to NISHI YASUO (2)· patent assignee history

2015Patents assigned to SAKAI SHIGEKAZU (2)· patent assignee history

2015Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KONICA MINOLTA INC	2	2015
KONISHIROKU PHOTO IND	2	1994–1999
NISHI YASUO	2	2015
SAKAI SHIGEKAZUself	2	2015
TOKAI SEIKI KK	2	1989–1991

Locations

Location	Patents	Span
Tokyo, JP	2	2015
Hino, JP	2	1994–1999
Gifu, JP	2	1989–1991