Inventor
Tatsuya Usuki
Inventor
Kawasaki, JP
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices17%
B82YSpecific uses or applications of nanostructures8%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%
H04BTransmission8%
G11CStatic stores7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light7%
H04LTransmission of digital information, e.g. telegraphic communication7%
H10BElectronic memory devices7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
G01QScanning-probe techniques or apparatus3%
PatentTitleYear
10,830,950Optical transmitter-receiver202010,164,713Optical transmitter, optical modulator module, and optical transmission system20189,874,768Optical modulation device20189,621,279'Optical receiver circuit'20179,500,823'Opto-electric integrated circuit and optical interposer'20169,419,410'Optical semiconductor device and method for controlling driving circuit'20168,942,276'Transmission apparatus'20157,801,309'Private key delivery system and a private key delivery method'20107,795,694'Quantum device, manufacturing method of the same and controlling method of the same'20107,768,692'Single-photon generator'20107,700,937'Single-photon generating device, single-photon detecting device, and optical quantum gate'20107,679,076'Optical semiconductor device and method of manufacturing the same'20107,492,901'Single-photon generator and single-photon generating method'20097,465,595'Quantum device, manufacturing method of the same and controlling method of the same'20087,462,539'Direct tunneling memory with separated transistor and tunnel areas'20087,432,153'Direct tunneling semiconductor memory device and fabrication process thereof'20087,288,813'Direct tunneling semiconductor memory device and fabrication process thereof'20077,288,811'Direct tunneling memory with separated transistor and tunnel areas'20076,815,759'Semiconductor memory with floating gate type FET'20046,462,374'Semiconductor device and method for fabricating the same'20026,195,292'Semiconductor memory with floating gate type FET'20015,369,288'Semiconductor device for switching a ballistic flow of carriers'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2020Patents assigned to FUJITSU LTD (22)· patent assignee history
1994–2010Based in Kawasaki, JP· patent location history
2008–2017Based in Kanagawa, JP· patent location history
2010Patents assigned to UNIV TOKYO (2)· patent assignee history
2015–2020Based in Tsukuba, JP· patent location history
2016–2017Patents assigned to NEC CORP (2)· patent assignee history
2018–2020Patents assigned to PHOTONICS ELECTRONICS TECHNOLOGY RES ASS (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 22 | 1994–2020 |
| PHOTONICS ELECTRONICS TECHNOLOGY RES ASS | 3 | 2018–2020 |
| NEC CORP | 2 | 2016–2017 |
| UNIV TOKYO | 2 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 12 | 1994–2010 |
| Tsukuba, JP | 5 | 2015–2020 |
| Kanagawa, JP | 5 | 2008–2017 |