Inventor
Ryuichi Fujimoto
Inventor
Tokyo, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers17%
H03HImpedance networks, e.g. resonant circuits17%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner14%
H03GControl of amplification14%
H03JTuning resonant circuits9%
G11CStatic stores6%
H03DDemodulation or transference of modulation from one carrier to another6%
H04BTransmission6%
B23KSoldering or unsoldering3%
G02BOptical elements, systems or apparatus3%
PatentTitleYear
11,100,975Semiconductor memory device and method for adjusting threthold voltage thereof202110,593,405Read process in a semiconductor memory device including a memory cell transistor20208,948,307'Ask signal generator'20158,008,973'Amplifier for amplifying a high-frequency signal'20117,417,501'Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier'20087,221,920'Voltage controlled oscillator, frequency synthesizer and communication apparatus'20077,190,239'Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier'20077,098,737'Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier'20066,870,446'High frequency filter'20056,809,604'Voltage control oscillator having a ferroelectric thin film perovskite single crystal resonator'20046,498,929'Receiver having DC offset decreasing function and communication system using the same'20025,995,819'Frequency converter and radio receiver using same'19995,809,408'Variable gain circuit and radio apparatus using the same'19985,498,851'Laser machining apparatus and method'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
1996Based in Aichi, JP· patent location history
1998–2015Patents assigned to TOSHIBA KK (11)· patent assignee history
1998–2021Based in Tokyo, JP· patent location history
2005Based in Kanagawa, JP· patent location history
2007–2020Based in Ota, JP· patent location history
2020Patents assigned to TOSHIBA MEMORY CORP (1)· patent assignee history
2021Patents assigned to KIOXIA CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 11 | 1998–2015 |
| KIOXIA CORP | 1 | 2021 |
| MITSUBISHI ELECTRIC CORP | 1 | 1996 |
| TOSHIBA MEMORY CORP | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 1998–2021 |
| Ota, JP | 2 | 2007–2020 |
| Kanagawa, JP | 1 | 2005 |
| Aichi, JP | 1 | 1996 |