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Inventor

Ai Takumi

Inventor
Utsunomiya, JP

Overview

3→
Patents
2011–2021
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.

G02Bprimary
G02BOptical elements, systems or apparatus50%
H04NPictorial communication, e.g. television33%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them17%
PatentTitleYear
11,092,798Observation apparatus and image pickup apparatus202110,831,016Eyepiece optical system and observation apparatus20207,948,690'Composite lens'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011Patents assigned to SANYO ELECTRIC CO (1)· patent assignee history
2011Based in Osaka, JP· patent location history
2020–2021Patents assigned to CANON KK (2)· patent assignee history
2020–2021Based in Utsunomiya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK22020–2021
SANYO ELECTRIC CO12011
Locations
LocationPatentsSpan
Utsunomiya, JP22020–2021
Osaka, JP12011