Inventor
Isamu Yamamoto
Inventor
Kanagawa, JP
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation9%
H04NPictorial communication, e.g. television9%
Y10TTechnical subjects covered by former us classification8%
G01RMeasuring electric variables6%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C07CAcyclic or carbocyclic compounds3%
C30BSingle-crystal growth3%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons3%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons3%
PatentTitleYear
11,044,329Client application user experience tracking20219,946,653Predictive memory caching20188,840,788'Hollow fiber membrane, method for manufacturing the same, and blood purification module'20148,040,408'Image signal processing apparatus, image capturing apparatus, and image signal processing method'20116,336,971'Method and apparatus for producing silicon carbide single crystal'20026,283,780'Test socket lattice'20016,267,603'Burn-in test socket'20015,783,124'Cellulose acetate hemodialysis membrane'19985,624,561'Cellulose acetate hemodialysis membrane'19975,578,919'Method of testing semiconductor device and test apparatus for the same'19965,517,036'Tape carrier, and test apparatus for the same'19965,505,033'Column base structure and connection arrangement'19965,494,982'Process for preparing ethylenic polymer composition'19965,266,197'Hollow fiber membrane for blood purification'19935,243,426'Circuit for gamma correction of a digital video signal and having a memory for storing data defining a desired gamma correction characteristic'19935,098,751'Food packaging container'19925,082,166'Connector beam joining method'19925,080,975'Composite diamond granules'19925,063,719'Column base structure'19915,013,689'Method of forming a passivation film'19914,945,391'Semiconductor device housing with laser diode and light receiving element'19904,886,631'Cellulose ester hollow fiber membrane for plasma separation'19894,877,756'Method of packaging a semiconductor laser and photosensitive semiconductor device'19894,875,098'Output signal processing circuit for CCD register'19894,821,100'Image signal compressor'19894,816,917'Clamp circuit for a solid-state image device'19894,808,312'Cellulose ester hollow fiber membrane for plasma separation'19894,791,910'Solar heat collector'19884,700,221'Power control circuit for a color encoder of a video camera'19874,657,704'Production of aminoalkylsulfonic acids'19874,507,500'Process for producing 2-mercaptoethylamine hydrohalides'19854,283,838'Method of making plastic encapsulated semiconductor devices'19814,196,155'Process for preparing organic phosphorus compounds'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1987Patents assigned to MITSUI TOATSU CHEMICALS (3)· patent assignee history
1980–1987Based in Zushi, JP· patent location history
1981–1996Patents assigned to MITSUBISHI ELECTRIC CORP (6)· patent assignee history
1987–2011Patents assigned to SONY CORP (6)· patent assignee history
1987–2011Based in Kanagawa, JP· patent location history
1989–2014Patents assigned to TOYO BOSEKI (6)· patent assignee history
1989–1998Based in Otsu, JP· patent location history
1991–1996Patents assigned to HITACHI METALS LTD (3)· patent assignee history
1991–1996Based in Kitakyushu, JP· patent location history
2018–2021Based in Belmont, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 6 | 1981–1996 |
| SONY CORP | 6 | 1987–2011 |
| TOYO BOSEKI | 6 | 1989–2014 |
| HITACHI METALS LTD | 3 | 1991–1996 |
| MITSUI TOATSU CHEMICALS | 3 | 1980–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 6 | 1987–2011 |
| Otsu, JP | 4 | 1989–1998 |
| Kitakyushu, JP | 3 | 1991–1996 |
| Zushi, JP | 3 | 1980–1987 |
| Belmont, California, US | 2 | 2018–2021 |