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Inventor

SHIGEAKI IMAI

Inventor
JP

Overview

5→
Patents
2022–2024
Patent span
Physics
Primary field (CPC G)

Patents· 5 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus38%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them38%
H04NPictorial communication, e.g. television23%
PatentTitleYear
11,874,592Light source device and image projection apparatus202411,812,201Light guide optical device, light source device, and image projection apparatus202311,720,010Light source device and projection device202311,630,288Image projection apparatus202311,537,037Light source device, image projection apparatus, and light source optical system2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2024Patents assigned to FUJITA KAZUHIRO (5)· patent assignee history
2022–2024Patents assigned to HIRAKAWA MAKOTO (5)· patent assignee history
2022–2024Patents assigned to IMAI SHIGEAKI (5)· patent assignee history
2022–2024Patents assigned to RICOH CO LTD (5)· patent assignee history
2022–2024Patents assigned to TAKANO YOHEI (5)· patent assignee history
2022–2024Based in JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITA KAZUHIRO52022–2024
HIRAKAWA MAKOTO52022–2024
IMAI SHIGEAKIself52022–2024
RICOH CO LTD52022–2024
TAKANO YOHEI52022–2024
Locations
LocationPatentsSpan
JP52022–2024