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Inventor

Masamichi Tohyama

Inventor
Yokohama, JP

Overview

2→
Patents
1986–1997
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G01Sprimary
G01SRadio direction-finding33%
G02BOptical elements, systems or apparatus33%
H04NPictorial communication, e.g. television33%
PatentTitleYear
5,608,457'Video camera apparatus'19974,623,237'Automatic focusing device'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1997Patents assigned to CANON KK (2)· patent assignee history
1986Based in Tokyo, JP· patent location history
1997Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK21986–1997
Locations
LocationPatentsSpan
Yokohama, JP11997
Tokyo, JP11986