Inventor

Masahiro Umewaka

Inventor

Ota, JP

Overview

6→

Patents

2000–2008

Patent span

Electricity

Primary field (CPC H)

Patents· 6 as inventor

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

G06Kprimary

G06KGraphical data reading20%

H03JTuning resonant circuits20%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for10%

H03GControl of amplification10%

H03KPulse technique10%

H04BTransmission10%

H04LTransmission of digital information, e.g. telegraphic communication10%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use10%

PatentTitleYear

7,386,328'Receiver'2008 7,369,629'FSK signal demodulation circuit'2008 7,330,708'Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus'2008 7,271,636'Hysteresis comparator and reset signal generator'2007 7,171,178'Tuning circuit having amplitude-varying function'2007 6,108,428'Tone control device and sound volume/tone control device for reducing noise at the time of tone modification'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2008Patents assigned to SANYO ELECTRIC CO (6)· patent assignee history

2000–2008Based in Gunma, JP· patent location history

2007–2008Based in Ota, JP· patent location history

2008Patents assigned to UNIV TOKYO SCIENCE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANYO ELECTRIC CO	6	2000–2008
UNIV TOKYO SCIENCE	1	2008

Locations

Location	Patents	Span
Ota, JP	3	2007–2008
Gunma, JP	3	2000–2008