Inventor

Hiroshi Ishiwata

Inventor

Higashimatsuyama, JP

Overview

38→

Patents

1988–2021

Patent span

Physics

Primary field (CPC G)

Patents· 38 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus28%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof19%

F02DControlling combustion engines10%

F02BInternal-combustion piston engines6%

Y02TClimate change mitigation technologies related to transportation6%

G01NInvestigating or analysing materials by determining their chemical or physical properties4%

B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool3%

G01BMeasuring length, thickness or similar linear dimensions3%

G06TImage data processing or generation, in general3%

H04LTransmission of digital information, e.g. telegraphic communication3%

PatentTitleYear

10,884,230Phase object visualization apparatus and phase object visualization method2021 10,775,603Phase distribution calculation method, evaluation method, and image processing device2020 10,754,139Three-dimensional position information acquiring method and three-dimensional position information acquiring apparatus2020 10,563,177Evaluating a pluripotent stem cell based on a region of a phase distribution image having a phase amount less than a threshold phase amount of a mitochondrion in a somatic cell2020 10,254,525Phase contrast microscope2019 10,114,207Apparatus and method for obtaining three-dimensional information2018 9,995,924Three-dimensional position information acquiring method and three-dimensional position information acquiring apparatus2018 9,594,941'Phase distribution measurement method and phase distribution measurement apparatus'2017 9,041,788'Method and apparatus for visualizing phase object'2015 8,259,167'Scattering medium internal observation apparatus, image pickup system, image pickup method and endoscope apparatus'2012 8,174,686'Focal position determining method, focal position determining apparatus, feeble light detecting apparatus and feeble light detecting method'2012 7,564,622'Methods for implement microscopy and microscopic measurement as well as microscope and apparatus for implementing them'2009 7,202,439'Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device'2007 6,806,435'Small hole electric discharge machine drill provided with depth-specific processing means'2004 6,741,356'Method for detecting physical amount of object and optical apparatus using the same'2004 6,430,157'Communication controlling apparatus'2002 6,404,545'Optical apparatus and microscope'2002 6,369,375'Detection apparatus having an object gradient detection'2002 6,323,998'Microscope apparatus'2001 6,031,838'ATM switching system'2000 5,969,855'Microscope apparatus'1999 5,915,360'Spill control apparatus for fuel injection system'1999 5,808,791'Microscope apparatus'1998 5,751,475'Phase contrast microscope'1998 5,647,323'Fuel injection system'1997 5,642,715'Distributor type fuel injection pump'1997 5,617,830'Prestroke controller for engine fuel injection pump'1997 5,592,915'Pilot injection controller in fuel injection system and method of controlling pilot injection quantity'1997 5,566,921'Solenoid valve'1996 5,482,016'Pilot injection control system'1996 5,460,132'Fuel injection pump and prestroke controller therefor'1995 5,443,047'Fuel injection system'1995 5,357,933'Fuel injection device'1994 5,080,564'Prestroke control device for fuel injection pumps'1992 4,953,959'Objective lens for optical disks'1990 4,902,113'Objective lens and imaging optical system for optical information recording and readout device'1990 4,737,086'Fuel injection pump having variable prestroke mechanism'1988 4,730,586'Fuel injection apparatus for internal combustion engines'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1992Patents assigned to DIESEL KIKI CO (3)· patent assignee history

1988–1999Based in Higashimatsuyama, JP· patent location history

1990–2002Patents assigned to OLYMPUS OPTICAL CO (8)· patent assignee history

1990–2001Based in Yokosuka, JP· patent location history

1994–1999Patents assigned to ZEXEL CORP (10)· patent assignee history

1995–1997Based in Saitama, JP· patent location history

2002–2020Based in Hachioji, JP· patent location history

2004–2021Patents assigned to OLYMPUS CORP (13)· patent assignee history

2012–2015Patents assigned to ISHIWATA HIROSHI (3)· patent assignee history

2015–2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OLYMPUS CORP	13	2004–2021
ZEXEL CORP	10	1994–1999
OLYMPUS OPTICAL CO	8	1990–2002
DIESEL KIKI CO	3	1988–1992
ISHIWATA HIROSHIself	3	2012–2015

Locations

Location	Patents	Span
Higashimatsuyama, JP	10	1988–1999
Hachioji, JP	9	2002–2020
Tokyo, JP	6	2015–2021
Yokosuka, JP	5	1990–2001
Saitama, JP	3	1995–1997