Inventor

Masakatsu Arai

Inventor

Ibaraki, JP

Overview

11→

Patents

2004–2015

Patent span

Performing operations

Primary field (CPC B)

Patents· 11 as inventor

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

B41Jprimary

B41JTypewriters21%

B41LApparatus or devices for manifolding, duplicating or printing for office or other commercial purposes21%

B41FPrinting machines or presses16%

C09DCoating compositions, e.g. paints, varnishes or lacquers16%

B41PIndexing scheme relating to printing, lining machines, typewriters, and to stamps5%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers5%

C08LCompositions of macromolecular compounds5%

LOC185%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

9,010,913'Ink cartridge'2015 8,585,815'Non-aqueous inkjet ink'2013 8,414,696'Non-aqueous pigment ink'2013 7,799,123'Inkjet ink'2010 7,344,213'Method and system for calculating ink residue and ink container'2008 7,168,797'Ink container'2007 D0524366'Ink container'2006 7,040,223'Stencil printing ink container, stencil printing ink cartridge, method of manufacturing the ink cartridge, and inner plug for the ink container'2006 6,899,028'Container'2005 6,854,837'Ink supply system and ink supply method for stencil printer and ink container'2005 6,810,803'Stencil printing ink container'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2015Patents assigned to RISO KAGAKU CORP (11)· patent assignee history

2004Based in Amamachi, JP· patent location history

2005–2015Based in Ibaraki, JP· patent location history

2008Based in Amimachi, JP· patent location history

2010Based in Tokyo, JP· patent location history

2013Patents assigned to ARAI MASAKATSU (2)· patent assignee history

2013Patents assigned to HAYASHI HIROSHI (1)· patent assignee history

2013Patents assigned to KON SYOTARO (1)· patent assignee history

2013Patents assigned to OKAWA TERUAKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RISO KAGAKU CORP	11	2004–2015
ARAI MASAKATSUself	2	2013
HAYASHI HIROSHI	1	2013
KON SYOTARO	1	2013
OKAWA TERUAKI	1	2013

Locations

Location	Patents	Span
Ibaraki, JP	8	2005–2015
Tokyo, JP	1	2010
Amimachi, JP	1	2008
Amamachi, JP	1	2004