Inventor
Koichi Sakurai
Inventor
Tokyo, JP
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals19%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
A47GHousehold or table equipment4%
A61BDiagnosis4%
A63HToys, e.g. tops, dolls, hoops or building blocks4%
C22CAlloys4%
C23CCoating metallic material4%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
F16CShafts4%
PatentTitleYear
10,113,509Carburetor for internal combustion engine20189,784,318'Rolling bearing apparatus'20179,544,542'Teleconference management server device, teleconference management method and non-transitory computer-readable medium'20177,065,238'Defect inspection method and defect inspection equipment'20066,829,047'Defect detection system'20045,885,382'Primary cooling method in continuously annealing steel strip'19995,245,249'Flat display device'19935,205,293'Method of measuring surface blood flow'19935,186,768'Flat spring hose clamp and manufacture of same'19935,056,249'Sound-sensitive dancing toy'19914,692,820'Head-positioning mechanism for an endless tape'19874,637,007'Toy having a melody-making mechanism of a sound-detection type'19874,537,109'Dish with a melody sounding function'19854,448,614'Process for cooling a cold rolled steel strip'19844,408,561'Dual-purpose plant for producing cold rolled steel sheet and hot-dip galvanized steel sheet'19834,296,919'Apparatus for continuously producing a high strength dual-phase steel strip or sheet'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1999Patents assigned to NIPPON STEEL CORP (4)· patent assignee history
1981–1983Based in Otawara-shi, JP· patent location history
1984–1999Based in Kitakyushu, JP· patent location history
1985–1991Patents assigned to SAKURAYA CORP (2)· patent assignee history
1987–1993Patents assigned to SAKURAI KOICHI (3)· patent assignee history
1993–2006Patents assigned to MITSUBISHI ELECTRIC CORP (3)· patent assignee history
2004–2006Based in Tokyo, JP· patent location history
2017Patents assigned to BROTHER IND LTD (1)· patent assignee history
2017Based in Kawasaki, JP· patent location history
2018Based in Wako, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 4 | 1981–1999 |
| MITSUBISHI ELECTRIC CORP | 3 | 1993–2006 |
| SAKURAI KOICHIself | 3 | 1987–1993 |
| SAKURAYA CORP | 2 | 1985–1991 |
| BROTHER IND LTD | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2004–2006 |
| Kitakyushu, JP | 2 | 1984–1999 |
| Otawara-shi, JP | 2 | 1981–1983 |
| Wako, JP | 1 | 2018 |
| Kawasaki, JP | 1 | 2017 |