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Inventor

Akihiko Koyama

Inventor
Suwa, JP

Overview

2→
Patents
1988–2008
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.

G03Gprimary
G03GElectrography50%
H04BTransmission50%
PatentTitleYear
7,459,805'Image forming apparatus'20084,744,093'Method of detecting phase pulse signals from an AC distribution line'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to OSAKI ELECTRIC CO LTD (1)· patent assignee history
1988Based in Tokyo, JP· patent location history
2008Patents assigned to SEIKO EPSON CORP (1)· patent assignee history
2008Based in Suwa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OSAKI ELECTRIC CO LTD11988
SEIKO EPSON CORP12008
Locations
LocationPatentsSpan
Suwa, JP12008
Tokyo, JP11988