LexDanaLexDanabeta
Inventor

Ryohei Oka

Inventor
Yokohama, JP

Overview

2→
Patents
2015–2017
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

B41Jprimary
B41JTypewriters17%
C09DCoating compositions, e.g. paints, varnishes or lacquers17%
G02BOptical elements, systems or apparatus17%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them17%
G03HHolographic processes or apparatus17%
H04NPictorial communication, e.g. television17%
PatentTitleYear
9,815,991'Ink composition for inkjet recording, method for producing printed material, and printing method'20179,154,756'Projection apparatus and hologram recording medium'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to DAINIPPON PRINTING CO LTD (1)· patent assignee history
2015Based in Tokyo, JP· patent location history
2017Patents assigned to DNP FINE CHEMICALS CO LTD (1)· patent assignee history
2017Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAINIPPON PRINTING CO LTD12015
DNP FINE CHEMICALS CO LTD12017
Locations
LocationPatentsSpan
Yokohama, JP12017
Tokyo, JP12015