Inventor
Tomoyuki Toshima
Inventor
Tokorozawa, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer42%
G01RMeasuring electric variables25%
H01FMagnets8%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light8%
H05KPrinted circuits8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,990,417'Electromagnetic noise absorbing material and electromagnetic noise filter'19995,811,971'Magnetic sensor and magnetic field sensing method using said magnetic sensor based on impedance changes of a high frequency excited conductor'19985,734,267'Magnetic head, magnetic recording method using the magnetic head, and magnetic field sensing method using the magnetic head based on impedance changes of a high frequency excited conductor'19985,705,926'Magnetic sensor and magnetic field sensing method of using same based on impedance changes of a high frequency supplied conductor'19984,860,276'Micro optical head with an optically switched laser diode'19894,226,018'Method for manufacturing a floating type thin film magnetic head'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1999Patents assigned to NIPPON TELEGRAPH & TELEPHONE (6)· patent assignee history
1980Based in Tokyo, JP· patent location history
1989Based in Saitama, JP· patent location history
1998–1999Based in Tokorozawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 6 | 1980–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokorozawa, JP | 4 | 1998–1999 |
| Saitama, JP | 1 | 1989 |
| Tokyo, JP | 1 | 1980 |