Inventor

Yasumi Imagawa

Inventor

Kanazawa, JP

Overview

11→

Patents

1993–2011

Patent span

Electricity

Primary field (CPC H)

Patents· 11 as inventor

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

H04Bprimary

H04BTransmission24%

H03DDemodulation or transference of modulation from one carrier to another18%

H03GControl of amplification18%

H04LTransmission of digital information, e.g. telegraphic communication12%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use12%

G05FSystems for regulating electric or magnetic variables6%

H02JElectric power networks6%

H03HImpedance networks, e.g. resonant circuits6%

PatentTitleYear

8,059,770'Diversity receiving device'2011 8,000,673'Diversity receiving device and receiving scheme switching method'2011 6,693,977'Portable radio device with direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal'2004 6,275,542'Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal'2001 5,894,499'Direct conversion receiver having filter with cut-off frequency switching means'1999 5,513,387'Automatic gain control circuit'1996 5,448,774'Intermittent operation receiver'1995 5,387,820'Power supply circuit'1995 5,361,408'Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals'1994 5,293,408'FSK data receiving system'1994 5,179,727'Automatic adjusting circuit for an analog filter'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2004Based in Kanazawa, JP· patent location history

1994–2004Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (8)· patent assignee history

1994Based in Yokohama, JP· patent location history

1999–2011Based in Ishikawa, JP· patent location history

2011Patents assigned to PANASONIC CORP (2)· patent assignee history

2011Patents assigned to IMAGAWA YASUMI (1)· patent assignee history

2011Patents assigned to NAKAYAMA KAZUHIKO (1)· patent assignee history

2011Patents assigned to SASAKI MAKOTO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	8	1994–2004
PANASONIC CORP	2	2011
IMAGAWA YASUMIself	1	2011
NAKAYAMA KAZUHIKO	1	2011
SASAKI MAKOTO	1	2011

Locations

Location	Patents	Span
Kanazawa, JP	7	1993–2004
Ishikawa, JP	3	1999–2011
Yokohama, JP	1	1994