Inventor

Junichi Ishiwata

Inventor

Yokohama, JP

Overview

7→

Patents

1976–1997

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G05Fprimary

G05FSystems for regulating electric or magnetic variables15%

G06FElectric digital data processing15%

G01DMeasuring not specially adapted for a specific variable8%

G04CElectromechanical clocks or watches8%

G04GElectronic time-pieces8%

G07CTime or attendance registers8%

H02JElectric power networks8%

H03HImpedance networks, e.g. resonant circuits8%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%

PatentTitleYear

5,606,255'Hall effect sensing apparatus for moving object having an adjustable magnetor yoke'1997 4,686,643'Electronic equipment selectively storing a frequently used conversion function'1987 4,481,598'Electronic equipment having a second function keying system'1984 4,473,302'Electronic device'1984 4,449,057'Solar cell power supply device'1984 4,017,753'Shaped quartz crystal resonator'1977 3,947,753'Voltage regulator including an LED to provide a reference voltage'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to CANON KK (5)· patent assignee history

1976–1984Based in Yokohama, JP· patent location history

1977Patents assigned to MEIDENSHA ELECTRIC MFG CO LTD (1)· patent assignee history

1977–1997Based in Tokyo, JP· patent location history

1987Patents assigned to ISHIWATA JUNICHI (1)· patent assignee history

1987Based in Shimomaruko, Ohta-ku, Tokyo, JP· patent location history

1997Patents assigned to TDK CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	5	1976–1987
ISHIWATA JUNICHIself	1	1987
MEIDENSHA ELECTRIC MFG CO LTD	1	1977
TDK CORP	1	1997

Locations

Location	Patents	Span
Yokohama, JP	4	1976–1984
Tokyo, JP	2	1977–1997
Shimomaruko, Ohta-ku, Tokyo, JP	1	1987