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Inventor

IKUO MAEDA

Inventor
JP

Overview

3→
Patents
2022–2023
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them22%
F21KNon-electric light sources using luminescence11%
F21VFunctional features or details of lighting devices or systems thereof11%
G02BOptical elements, systems or apparatus11%
G08CTransmission systems for measured values, control or similar signals11%
H01HElectric switches11%
H04NPictorial communication, e.g. television11%
H04QSelecting11%
PatentTitleYear
11,657,985Operation switch unit, remote operation terminal and operation system202311,402,737Light source device and projector including a phosphor and a color-changing section2022RE049040Light source apparatus and image projection apparatus2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to RICOH CO LTD (2)· patent assignee history
2022–2023Based in JP· patent location history
2023Patents assigned to IDEC CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD22022
IDEC CORP12023
Locations
LocationPatentsSpan
JP32022–2023