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Inventor

Yasuaki Kameyama

Inventor
Miyagi, JP

Overview

3→
Patents
2003–2020
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 apparatus25%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%
H02KDynamo-electric machines25%
G11BInformation storage based on relative movement between record carrier and transducer13%
H04NPictorial communication, e.g. television13%
PatentTitleYear
10,574,127Actuator and coil unit20207,146,097'Focusing device'20066,628,593'Disk drive using plural optical heads, capable of identifying the types of media'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2006Patents assigned to ALPS ELECTRIC CO LTD (2)· patent assignee history
2003–2006Based in Miyagi, JP· patent location history
2020Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history
2020Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALPS ELECTRIC CO LTD22003–2006
PANASONIC IP MAN CO LTD12020
Locations
LocationPatentsSpan
Miyagi, JP22003–2006
Osaka, JP12020