Inventor
Kiyoshi Hirakawa
Inventor
Kurashiki, JP
Overview
29→
Patents
1985–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification17%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons12%
F16CShafts12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
C21DModifying the physical structure of ferrous metals6%
C22CAlloys4%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials4%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines3%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%
PatentTitleYear
11,059,434Binding member and engaging member202111,052,839Binding structure of wire routing material, and engaging member202111,052,838Engaging member20219,709,970'Control device, security management system, and security management method'20176,635,204'Process of making hollow fibers and treating fibers'20036,562,151'Rolling shaft made by high-frequency quenching'20036,455,156'Hollow fibers and manufacturing method of hollow fibers'20026,248,287'Corrective tempering apparatus for rolling elements'20016,119,347'Method for manufacturing balls for bearing and products thereby'20006,093,268'Corrective tempering method for rolling elements'20006,012,851'Rolling bearing'20005,860,749'Rolling bearing for supporting rotating spindles'19995,766,758'Fiber of ethylene-vinyl alcohol copolymer and process for production thereof'19985,753,367'Disperse dye-dyeable regenerated cellulose fiber and textile products containing the fiber'19985,695,375'Disperse dye-dyeable regenerated cellulose fiber and textile products containing the fiber'19975,639,168'Ball bearing for supporting a spindle rotating at high speed'19975,603,576'Method for manufacturing balls for bearing and products thereby'19975,567,796'Polyester fiber'19965,464,695'Composite fiber containing inorganic fine powder'19955,447,579'Rolling part steel'19955,439,300'Rolling bearing'19955,359,672'Line detecting method using two rectangular windows passing through the line to be detected'19945,340,650'Vinyl alcohol units-containing polymer composite fiber having resistance to hot water and wet heat and process for its production'19945,304,420'Vinyl alcohol unit-containing polymer fibers having high moisture absorption and high water absorption'19945,087,519'Ethylene-vinyl alcohol copolymer composite fiber and production thereof'19925,077,003'Rolling-part steel and rolling part employing same'19915,059,482'Composite fiber and process for producing the same'19915,047,448'Antimicrobial-shaped article and a process for producing the same'19914,514,459'Woven fabric having a velvety appearance'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–2003Patents assigned to KURARAY CO (13)· patent assignee history
1985–2003Based in Kurashiki, JP· patent location history
1991Patents assigned to NIPPON SEIKO KK (1)· patent assignee history
1991–2000Based in Hiratsuka, JP· patent location history
1995–2003Patents assigned to NSK LTD (10)· patent assignee history
1995–2003Based in Kanagawa, JP· patent location history
2017Based in Fukuoka, JP· patent location history
2021Patents assigned to DAIWA KASEI IND CO LTD (3)· patent assignee history
2021Patents assigned to TOYOTA MOTOR CO LTD (2)· patent assignee history
2021Based in Okazaki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KURARAY CO | 13 | 1985–2003 |
| NSK LTD | 10 | 1995–2003 |
| DAIWA KASEI IND CO LTD | 3 | 2021 |
| TOYOTA MOTOR CO LTD | 2 | 2021 |
| NIPPON SEIKO KK | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kurashiki, JP | 12 | 1985–2003 |
| Kanagawa, JP | 8 | 1995–2003 |
| Okazaki, JP | 3 | 2021 |
| Hiratsuka, JP | 3 | 1991–2000 |
| Fukuoka, JP | 1 | 2017 |