Inventor
Yuuji Yoshitomi
Inventor
Tsuchiura, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing25%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling8%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material8%
B66BElevators8%
D07BRopes or cables in general8%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application8%
G01FMeasuring volume, volume flow, mass flow or liquid level8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
7,137,483'Rope and elevator using the same'20066,885,556'Electronic apparatus'20056,809,927'Liquid circulation cooling system for electronic apparatus'20046,757,169'Electronic apparatus'20045,307,687'Electromagnetic flowmeter'19944,730,474'Method of relieving residual stress in metal pipe'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2006Patents assigned to HITACHI LTD (6)· patent assignee history
1988–1994Based in Ibaraki, JP· patent location history
2004–2006Based in Tsuchiura, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 6 | 1988–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsuchiura, JP | 4 | 2004–2006 |
| Ibaraki, JP | 2 | 1988–1994 |