Inventor
Tohru Iwai
Inventor
Osaka, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Sprimary
G01SRadio direction-finding25%
G08GTraffic control systems25%
G02BOptical elements, systems or apparatus8%
H01QAntennas, i.e. radio aerials8%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light8%
H04BTransmission8%
H05KPrinted circuits8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
6,521,829'Electromagnetic wave absorbing sheet'20035,815,795'Oscillation detecting system for wireless repeater'19984,983,984'Roadside beacon system with polarized beams'19914,887,090'Vehicle antenna with shiftable gain patterns'19894,833,481'Roadside beacon system'19894,823,138'Roadside beacon system'19894,444,462'Picture image observation system'19844,429,392'Laser output controlling device'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2003Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (8)· patent assignee history
1984–2003Based in Osaka, JP· patent location history
2003Patents assigned to JAPAN SCIENCE & TECH CORP (1)· patent assignee history
2003Patents assigned to KANTO WIRE PRODUCTS CORP (1)· patent assignee history
2003Patents assigned to MATSUMURA KAZUHITO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO ELECTRIC INDUSTRIES | 8 | 1984–2003 |
| JAPAN SCIENCE & TECH CORP | 1 | 2003 |
| KANTO WIRE PRODUCTS CORP | 1 | 2003 |
| MATSUMURA KAZUHITO | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 8 | 1984–2003 |