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Inventor

Kazuhiko Tsukamoto

Inventor
Kanagawa, JP

Overview

4→
Patents
2013–2019
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus33%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein22%
H04NPictorial communication, e.g. television22%
G01SRadio direction-finding11%
G03GElectrography11%
PatentTitleYear
10,404,954Optical deflection apparatus, image projector, optical writing unit, and object recognition device20199,910,271'Actuator device, optical deflector, an image projection apparatus, and image forming apparatus'20188,654,424'Multibeam deflector for separating beams output from optical deflection devices'20148,620,117'Optical device, optical deflection device, and optical modulation device'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2019Patents assigned to RICOH CO LTD (4)· patent assignee history
2013–2018Patents assigned to TSUKAMOTO KAZUHIKO (3)· patent assignee history
2013–2014Patents assigned to HASHIGUCHI TSUYOSHI (2)· patent assignee history
2013Patents assigned to NAKAGAWA JUN (1)· patent assignee history
2013Based in Yokohama, JP· patent location history
2014–2019Based in Kanagawa, JP· patent location history
2018Patents assigned to KITAZAWA TOMOFUMI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD42013–2019
TSUKAMOTO KAZUHIKOself32013–2018
HASHIGUCHI TSUYOSHI22013–2014
KITAZAWA TOMOFUMI12018
NAKAGAWA JUN12013
Locations
LocationPatentsSpan
Kanagawa, JP32014–2019
Yokohama, JP12013