Inventor

Toshihiko Imai

Inventor

Tokyo, JP

Overview

1994–2018

Patent span

Physics

Primary field (CPC G)

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

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties20%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%

B01LChemical or physical laboratory apparatus for general use10%

G02BOptical elements, systems or apparatus10%

H01JElectric discharge tubes or discharge lamps10%

H02NElectric machines not otherwise provided for10%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers10%

H05KPrinted circuits10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1994–1996Patents assigned to OLYMPUS OPTICAL CO (3)· patent assignee history

1994–1996Based in Tokyo, JP· patent location history

1998–2018Patents assigned to SHINETSU HANDOTAI KK (2)· patent assignee history

1998–2018Based in Fukushima, JP· patent location history

1999Patents assigned to PIONEER ELECTRONIC CORP (1)· patent assignee history

1999Patents assigned to PIONEER ELECTRONIC TOHOKU (1)· patent assignee history

1999Based in Yamagata, JP· patent location history

2018Patents assigned to IAS INC (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations