Inventor
Takumi Fujita
Inventor
Kuwana, JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals15%
Y10TTechnical subjects covered by former us classification15%
Y02PClimate change mitigation technologies in the production or processing of goods13%
F16CShafts10%
F04BPositive-displacement machines for liquids6%
F16HGearing6%
C22CAlloys4%
F16DCouplings for transmitting rotation4%
G01MTesting static or dynamic balance of machines or structures4%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents2%
PatentTitleYear
10,436,674Device for estimating service life and method for estimating service life of rolling bearing201910,161,015Heat treatment method and method of manufacturing machine part20189,702,834'Inspection method for bearing part and inspection apparatus for bearing part'20179,611,533'Manufacturing method of machine component'20179,329,100'Life estimation device and life estimation method for rolling bearing'20168,850,787'Hybrid thermal power generation system and method of constructing same'20148,844,489'Roller follower, valve train, induction hardening apparatus, method of heat treatment of shaft member, method of manufacturing shaft, and shaft'20148,646,789'Torsion beam type suspension device'20148,529,711'Induction heat treatment method, induction heat treatment installation and induction-heat-treated product'20138,394,212'High frequency induction heating treatment equipment and method and induction heated and thus treated product'20138,333,908'Fluorine insolubilizers and methods of producing same'20128,052,919'High frequency induction heating treatment equipment and method and induction heated and thus treated product'20117,707,723'Method of producing a roller thrust bearing having a plurality of rows of rollers'20107,591,912'Induction heat treatment method, induction heat treatment installation and induction-heat-treated product'20097,273,319'Roller thrust bearing'20077,124,867'Traveling transmission of working vehicle'20067,103,990'Rotary silicon wafer cleaning apparatus'20066,843,605'Roller thrust bearing'20056,786,317'Hydraulic clutch assembly'20046,530,290'Speed change control device for tractors'20036,487,924'Transmission assembly for working vehicles'20026,364,045'Front wheel drive clutch for tractors'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2004Patents assigned to KANZAKI KOKYUKOKI MFG CO LTD (4)· patent assignee history
2002–2003Based in Itami, JP· patent location history
2005–2019Patents assigned to NTN TOYO BEARING CO LTD (13)· patent assignee history
2005–2019Based in Kuwana, JP· patent location history
2006–2017Patents assigned to FUJITA TAKUMI (10)· patent assignee history
2012Based in Mie-gun, JP· patent location history
2013Patents assigned to SUZUKI NOBUYUKI (2)· patent assignee history
2014Based in Tokyo, JP· patent location history
2014Based in Tochigi, JP· patent location history
2017Patents assigned to YAGITA KAZUHIRO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NTN TOYO BEARING CO LTD | 13 | 2005–2019 |
| FUJITA TAKUMIself | 10 | 2006–2017 |
| KANZAKI KOKYUKOKI MFG CO LTD | 4 | 2002–2004 |
| SUZUKI NOBUYUKI | 2 | 2013 |
| YAGITA KAZUHIRO | 2 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kuwana, JP | 13 | 2005–2019 |
| Itami, JP | 2 | 2002–2003 |
| Tokyo, JP | 1 | 2014 |
| Tochigi, JP | 1 | 2014 |
| Mie-gun, JP | 1 | 2012 |