Inventor

Koji Hagiwara

Inventor
Susono, JP

Overview

20→
Patents
1997–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 20 as inventor

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

F01Nprimary
F01NGas-flow silencers or exhaust apparatus for machines or engines in general22%
Y02TClimate change mitigation technologies related to transportation20%
F02DControlling combustion engines16%
H01JElectric discharge tubes or discharge lamps16%
B01DSeparation7%
C23CCoating metallic material2%
C30BSingle-crystal growth2%
G01MTesting static or dynamic balance of machines or structures2%
G07CTime or attendance registers2%
H05BElectric heating2%
PatentTitleYear
10,746,077Diagnostic apparatus for exhaust gas sensor202010,619,547Diagnosis apparatus and diagnosis method for NOx sensor202010,302,002Deterioration diagnosis apparatus for exhaust gas purification apparatus201910,184,382Abnormality diagnosis apparatus for NO201910,119,446Deterioration diagnosis apparatus for exhaust gas purification apparatus201810,087,807Deterioration diagnosis apparatus for exhaust gas purification apparatus201810,072,553Deterioration diagnosis apparatus for selective catalytic reduction catalyst201810,072,544Deterioration diagnosis apparatus for the exhaust gas purification apparatus20189,650,936'Abnormality detection apparatus for exhaust gas purification apparatus'20179,617,900'Deterioration diagnosis device for an exhaust gas purification apparatus'20179,611,776'Deterioration diagnosis device for an exhaust gas purification apparatus'20176,707,242'Color cathode ray tube'20046,501,214'Color cathode ray tube'20026,465,942'Color cathode ray having a shadow mask structure with curl reduced in a skirt portion thereof'20026,437,497'Color cathode ray tube having an improved shadow mask'20026,274,974'Color cathode ray tube having an improved shadow mask structure'20016,255,765'Color cathode ray tube having a shadow mask structure with curl reduced in a skirt portion thereof'20016,111,346'Color cathode ray tube having shadow mask structure with curl reduced in skirt portion'20005,952,063'Crucible of pyrolytic boron nitride for molecular beam epitaxy'19995,665,260'Ceramic electrostatic chuck with built-in heater'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–1999Patents assigned to SHINETSU CHEMICAL CO (2)· patent assignee history
1997–1999Based in Gunma, JP· patent location history
2000–2004Patents assigned to HITACHI LTD (7)· patent assignee history
2000Patents assigned to HITACHI ELECTRONIC DEVICE CO L (1)· patent assignee history
2000–2002Based in Mobara, JP· patent location history
2001–2002Patents assigned to HITACHI ELECTRONIC DEVICES CO (3)· patent assignee history
2017–2020Patents assigned to TOYOTA MOTOR CO LTD (10)· patent assignee history
2017–2019Based in Susono, JP· patent location history
2020Based in Sunto-gun, JP· patent location history
2020Based in Suntou-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYOTA MOTOR CO LTD102017–2020
HITACHI LTD72000–2004
HITACHI ELECTRONIC DEVICES CO32001–2002
SHINETSU CHEMICAL CO21997–1999
HITACHI ELECTRONIC DEVICE CO L12000
Locations
LocationPatentsSpan
Susono, JP92017–2019
Mobara, JP52000–2002
Gunma, JP21997–1999
Sunto-gun, JP12020
Suntou-gun, JP12020