Inventor

Shigeru Todokoro

Inventor

Fujisawa, JP

Overview

1976–2007

Patent span

Electricity

Primary field (CPC H)

Patents· 14 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer41%

H04NPictorial communication, e.g. television27%

H03FAmplifiers18%

H03KPulse technique5%

H04BTransmission5%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers5%

PatentTitleYear

7,263,271'System of sharing objects having a plurality of contents'2007 7,254,456'Recording medium and reproducing apparatus for quantized data'2007 6,748,160'System of sharing objects having a plurality of contents'2004 6,724,979'System of sharing objects having a plurality of contents'2004 6,640,045'System of sharing objects having a plurality of contents'2003 6,532,335'System of sharing objects having a plurality of contents'2003 4,574,206'Wave-shaping circuit'1986 4,520,469'Tracking servo system for optical-disc information reproducing apparatus'1985 4,446,489'Signal copy device for digital record/reproduction system'1984 4,403,263'System for processing audio PCM digital signals'1983 4,387,270'Method of harmonizing the impedances of an audio amplifier and loudspeaker interconnected therewith'1983 4,021,747'Signal amplifier circuit using a pair of complementary junction field effect transistors'1977 4,008,442'Signal amplifier circuit with a field effect transistor having current unsaturated triode vacuum tube characteristics'1977 4,000,474'Signal amplifier circuit using a field effect transistor having current unsaturated triode vacuum tube characteristics'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1986Patents assigned to TOKYO SHIBAURA ELECTRIC CO (8)· patent assignee history

1976–2007Based in Fujisawa, JP· patent location history

2003–2007Patents assigned to TOSHIBA KK (6)· patent assignee history

2003–2007Based in Fijisawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOKYO SHIBAURA ELECTRIC CO	8	1976–1986
TOSHIBA KK	6	2003–2007

Locations

Location	Patents	Span
Fujisawa, JP	9	1976–2007
Fijisawa, JP	5	2003–2007