Inventor

Sumio Yamada

Inventor

Kawasaki, JP

Overview

27→

Patents

1981–2020

Patent span

Physics

Primary field (CPC G)

Patents· 27 as inventor

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

H03Hprimary

H03HImpedance networks, e.g. resonant circuits18%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel16%

G01CMeasuring distances, levels or bearings14%

B22DCasting of metals7%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace5%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock5%

Y02PClimate change mitigation technologies in the production or processing of goods5%

A63HToys, e.g. tops, dolls, hoops or building blocks2%

B41JTypewriters2%

C09DCoating compositions, e.g. paints, varnishes or lacquers2%

PatentTitleYear

10,691,297Display control device2020 10,657,840Image forming apparatus2020 9,571,987'Seat management system'2017 7,360,426'Acceleration sensor'2008 7,296,471'Acceleration sensor'2007 6,484,576'Tuning-fork vibratory gyro'2002 6,404,108'Piezoelectric actuator'2002 6,255,916'Resonator-type surface-acoustic-wave filter for reducing the signal strength of a spurious peak'2001 6,253,613'Tuning fork vibratory gyro utilizing a piezoelectric transversal effect'2001 6,230,562'Detection circuit for vibratory gyro and vibratory gyro device using the same'2001 6,177,756'Piezoelectric gyro and method of driving the piezoelectric gyro'2001 5,861,705'Tuning-fork vibratory gyro and sensor system using the same'1999 5,775,404'Method of continuously casting austenitic stainless steel'1998 5,757,107'Tuning-fork vibratory gyro and sensor system using the same'1998 5,728,348'Ladle cover for vacuum refining process'1998 5,567,222'Method of controlling slag coating of a steel converter'1996 5,356,454'Mold powder for continuous casting'1994 5,028,388'Method for producing chromium containing molten iron with low sulphur concentration'1991 4,919,713'Process for producing chromium containing molten iron'1990 4,757,581'Method for producing a piezoelectric resonator'1988 4,583,019'Piezoelectric resonator using 165.degree. Y-cut LiNbO.sub.3'1986 4,543,125'Process of making steel in converter using a great amount of iron-bearing cold material'1985 4,473,398'Method for desulfurizing a molten iron by injection'1984 4,468,582'Piezoelectric resonator chip and trimming method for adjusting the frequency thereof'1984 4,454,444'LiTaO.sub.3 Piezoelectric resonator'1984 4,426,595'Acoustic surface wave device with improved band-pass characteristics'1984 4,263,043'Desulfurizing agent for injection'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1998Patents assigned to KAWASAKI STEEL CO (9)· patent assignee history

1981–1998Based in Chiba, JP· patent location history

1984–2008Patents assigned to FUJITSU LTD (15)· patent assignee history

1984–2002Based in Kawasaki, JP· patent location history

1984Based in Ichikawa, JP· patent location history

2001Patents assigned to FUJITSU TOWA ELECTRON LTD (1)· patent assignee history

2007–2008Patents assigned to FUJITSU MEDIA DEVICES LTD (2)· patent assignee history

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

2017–2020Patents assigned to KYOCERA DOCUMENT SOLUTIONS INC (3)· patent assignee history

2017–2020Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJITSU LTD	15	1984–2008
KAWASAKI STEEL CO	9	1981–1998
KYOCERA DOCUMENT SOLUTIONS INC	3	2017–2020
FUJITSU MEDIA DEVICES LTD	2	2007–2008
FUJITSU TOWA ELECTRON LTD	1	2001

Locations

Location	Patents	Span
Kawasaki, JP	13	1984–2002
Chiba, JP	8	1981–1998
Osaka, JP	3	2017–2020
Yokohama, JP	2	2007–2008
Ichikawa, JP	1	1984