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Inventor

Akira Yamagami

Inventor
Kawasaki, JP

Overview

5→
Patents
2012–2021
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 apparatus50%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them13%
H02HEmergency protective circuit arrangements13%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems13%
H05BElectric heating13%
PatentTitleYear
10,938,205Electronic device202110,095,012Zoom lens system, optical apparatus and method for manufacturing zoom lens system20189,097,881'Zoom lens system, optical apparatus and method for manufacturing zoom lens system'20158,934,176'Optical system, optical apparatus and method for manufacturing optical system'20158,238,039'Variable power optical system, optical apparatus equipped with the variable power optical system, and method for manufacturing variable power optical system'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2018Patents assigned to NIKON CORP (4)· patent assignee history
2012–2015Patents assigned to YAMAGAMI AKIRA (3)· patent assignee history
2012–2018Based in Kawasaki, JP· patent location history
2015Patents assigned to TAKE TOSHINORI (1)· patent assignee history
2021Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
2021Patents assigned to MITSUBISHI ELECTRIC LIGHTING CORP (1)· patent assignee history
2021Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIKON CORP42012–2018
YAMAGAMI AKIRAself32012–2015
MITSUBISHI ELECTRIC CORP12021
MITSUBISHI ELECTRIC LIGHTING CORP12021
TAKE TOSHINORI12015
Locations
LocationPatentsSpan
Kawasaki, JP42012–2018
Kanagawa, JP12021