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Inventor

Fumio Ichikawa

Inventor
Kamakura, JP

Overview

21→
Patents
1993–2020
Patent span
Physics
Primary field (CPC G)

Patents· 21 as inventor

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

G01Cprimary
G01CMeasuring distances, levels or bearings20%
B41JTypewriters15%
Y10TTechnical subjects covered by former us classification15%
B23KSoldering or unsoldering10%
G06FElectric digital data processing7%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure5%
H01LSemiconductor devices5%
H10NElectric solid-state devices not otherwise provided for5%
B66BElevators2%
G02BOptical elements, systems or apparatus2%
PatentTitleYear
10,794,778Physical quantity detecting device, electronic apparatus, and moving object20209,874,484Physical quantity detecting device, electronic apparatus, and moving object20189,534,894'Resonator element, gyro sensor element, electronic device, electronic apparatus, and moving object'20179,341,477'Vibrator element, method of manufacturing vibrator element, angular velocity sensor, electronic device, and moving body'20169,329,040'Angular velocity sensor and method of manufacture'20169,140,549'Physical quantity detection element, physical quantity detection device, and electronic apparatus'20159,103,674'Sensor element, method for manufacturing sensor element, sensor device, and electronic apparatus'20159,091,542'Sensor element, method for manufacturing sensor element, sensor device, and electronic apparatus'20158,402,316'Method of testing computer, computer test apparatus and non-transitory computer-readable medium'20137,837,021'Passenger conveyor'20107,586,723'Power source fault detection apparatus, program, and method'20097,161,222'Semiconductor device and semiconductor device fabrication method'20076,397,347'Disk array apparatus capable of dealing with an abnormality occurring in one of disk units without delaying operation of the apparatus'20025,930,895'Process for producing an ink jet recording head'19995,657,539'Process for producing an ink jet recording head'19975,477,244'Testing method and apparatus for judging a printing device on the basis of a test pattern recorded on a recording medium by the printing device'19955,436,645'Inspection/adjustment method and apparatus for laser beam output optical unit and laser scanning optical system'19955,389,954'Laser process apparatus for forming holes in a workpiece'19955,351,264'Optical apparatus for emitting light and automatic adjustment apparatus therefor'19945,293,179'Work convey method and apparatus'19945,243,755'Ink-jet head assembling apparatus and method'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1999Patents assigned to CANON KK (8)· patent assignee history
1994–1999Based in Kamakura, JP· patent location history
2002–2010Based in Tokyo, JP· patent location history
2009–2013Patents assigned to FUJITSU LTD (2)· patent assignee history
2009–2013Based in Kawasaki, JP· patent location history
2013–2016Patents assigned to ICHIKAWA FUMIO (5)· patent assignee history
2013Patents assigned to INOUE TAMORU (1)· patent assignee history
2015–2020Patents assigned to SEIKO EPSON CORP (8)· patent assignee history
2015–2016Based in Ebina, JP· patent location history
2016–2020Based in Suwa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK81993–1999
SEIKO EPSON CORP82015–2020
ICHIKAWA FUMIOself52013–2016
FUJITSU LTD22009–2013
INOUE TAMORU12013
Locations
LocationPatentsSpan
Kamakura, JP71994–1999
Suwa, JP42016–2020
Ebina, JP42015–2016
Tokyo, JP32002–2010
Kawasaki, JP22009–2013