Inventor

Akio Ozawa

Inventor

Tokyo, JP

Overview

1978–2014

Patent span

Electricity

Primary field (CPC H)

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

H03Fprimary

H03FAmplifiers22%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers8%

Y10TTechnical subjects covered by former us classification8%

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates6%

F16CShafts6%

H02HEmergency protective circuit arrangements6%

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 systems6%

H03KPulse technique6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

A63HToys, e.g. tops, dolls, hoops or building blocks3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1978–1999Patents assigned to PIONEER ELECTRONIC CORP (9)· patent assignee history

1978–2010Based in Tokyo, JP· patent location history

1992–2010Patents assigned to YKK ARCHITECTURAL (3)· patent assignee history

1992–2012Based in Toyama, JP· patent location history

1999–2007Based in Kawagoe, JP· patent location history

2001–2007Patents assigned to PIONEER CORP (7)· patent assignee history

2001–2007Based in Saitama, JP· patent location history

2012–2014Patents assigned to OZAWA AKIO (2)· patent assignee history

2014Patents assigned to SEIKO INSTR INC (2)· patent assignee history

2014Based in Chiba, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations