Inventor
Hiroshi Miyagi
Inventor
Jouetsu, JP
Overview
Patents· 45 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission17%
H03FAmplifiers13%
H03GControl of amplification10%
H03JTuning resonant circuits10%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses9%
H01QAntennas, i.e. radio aerials4%
H10DInorganic electric semiconductor devices4%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
C08LCompositions of macromolecular compounds3%
H03HImpedance networks, e.g. resonant circuits3%
PatentTitleYear
9,050,243'Multilayered body for medical containers and medical container'20158,314,449'MIS transistor and CMOS transistor'20128,058,862'Reference voltage generation circuit'20117,944,321'Harmonic suppressing circuit'2011RE042334'Smoothing circuit employing charging circuit intermittently charging when input voltage is higher relatively than terminal voltage and discharging circuit intermittently releasing discharging current when terminal voltage is higher relatively than input voltage'20117,920,835'FM transmitter'20117,876,169'Modulating circuit'20117,579,888'Frequency synthesizer and charge pump circuit used therein'20097,576,578'Frequency synthesizer and charge pump circuit used for the same'20097,561,863'Automatic gain control device'20097,551,906'AM/FM radio receiver and local oscillator circuit used therein'20097,496,419'Modulation output device'20097,443,240'AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit and its semiconductor integrated circuit'20087,432,769'Oscillator circuit'20087,403,140'Receiver, digital-analog converter and tuning circuit'20087,378,709'Oscillator with a guard ring formed around an N well and constituent components integrally formed on the N well, on a semiconductor substrate'20087,368,981'Limit circuit'20087,286,804'Receiver digital-analog converter and tuning circuit'20077,280,079'Adapter device for car radio'20077,269,399'Receiver of double conversion system with antenna tuning with variable capacitance using digital-to-analog converter having temperature coefficient setting section'20077,253,776'FM radio receiver'20077,212,794'Receiver with a crystal oscillator having a natural-oscillation frequency set so that a fundamental component and its harmonics are outside the range of a receiving band of a modulated wave signal'20077,142,834'Noise removing circuit'20067,133,653'Receiver and composite component having local oscillator components and mixing circuit integrally formed on semiconductor substrate'20067,130,597'Receiver having high-frequency amplifier circuit portions integrally formed on a semiconductor substrate'20067,120,407'Receiver and its tracking adjusting method'20067,055,072'Memory system'20067,049,895'FET band amplifier'20067,046,086'FET band amplifier'20067,038,548'Amplifier circuit for AM broadcasting'20066,989,720'Receiver'20066,954,106'FET band amplifier'20056,930,552'FET band amplifier'20056,919,710'Smoothing circuit'20056,920,321'Measuring method for communication device'20056,906,589'Multistaged amplification circuit'20056,858,946'Semiconductor device'20056,844,780'Automatic gain control circuit'20056,774,720'Electric field intensity detecting circuit and limiter amplifier'20046,753,736'Amplifier circuit for AM broadcasting'20046,744,307'Filter circuit'20045,578,968'Frequency converter, multistage frequency converter and frequency synthesizer utilizing them'19965,489,652'Injection-molded articles'19965,489,629'Rubber-modified polystyrene resin compositions'19964,799,947'Apparatus for carrying bottles in bottle making machine'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2011Based in Yokohama, JP· patent location history
2004–2009Patents assigned to NIIGATA SEIMITSU CO LTD (30)· patent assignee history
2004–2009Based in Kanagawa, JP· patent location history
2005–2008Based in Jouetsu, JP· patent location history
2005–2011Based in Tokyo, JP· patent location history
2006–2012Based in Niigata, JP· patent location history
2007Patents assigned to NEURO SOLUTION CORP (2)· patent assignee history
2008–2009Patents assigned to RICOH KK (6)· patent assignee history
2011Patents assigned to RICOH CO LTD (5)· patent assignee history
2011–2015Patents assigned to MIYAGI HIROSHI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIIGATA SEIMITSU CO LTD | 30 | 2004–2009 |
| RICOH KK | 6 | 2008–2009 |
| RICOH CO LTD | 5 | 2011 |
| MIYAGI HIROSHIself | 3 | 2011–2015 |
| NEURO SOLUTION CORP | 2 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Jouetsu, JP | 15 | 2005–2008 |
| Yokohama, JP | 9 | 1996–2011 |
| Niigata, JP | 5 | 2006–2012 |
| Kanagawa, JP | 5 | 2004–2009 |
| Tokyo, JP | 4 | 2005–2011 |