Kazuo Urata
23Patents
11h-index
22Co-inventors
75Inventor score
Filing activity: Sep 24, 1981 → Dec 2, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4857139A | Method and apparatus for forming a layer | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4811684A | Photo CVD apparatus, with deposition prevention in light source chamber | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5147822A | Plasma processing method for improving a package of a semiconductor device | Electricity | 41 | Expired |
| US4987008A | Thin film formation method | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4730300A | Disc centering device for a disc playback device | Physics | 29 | Expired |
| US6191492A | Electronic device including a densified region | Electricity | 26 | Expired |
| US4730299A | Device for preventing vibration of a disc motor shaft in a disc playback device | Physics | 17 | Expired |
| US4730296A | Loading device in a disc playback device | Physics | 14 | Expired |
| US5013688A | Method of manufacturing a semiconductor using plasma processing | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4646285A | Shutter plate control device in a disc playback device | Physics | 12 | Expired |
| US4777631A | Loading system for a disc cartridge case housing a disc in a disc playback device | Physics | 11 | Expired |
| US4910044A | Ultraviolet light emitting device and application thereof | Chemistry; Metallurgy | 8 | Expired |
| US4679182A | Disc playback device | Physics | 8 | Expired |
| US5121187A | Electric device having a leadframe covered with an antioxidation film | Electricity | 7 | Expired |
| US5192995A | Electric device utilizing antioxidation film between base pad for semiconductor chip and organic encapsulating material | Electricity | 6 | Expired |
| US4887548A | Thin film manufacturing system | Chemistry; Metallurgy | 6 | Expired |
| US4739428A | Clamping device for a holder of a disc playback device | Physics | 5 | Expired |
| US6756670B1 | Electronic device and its manufacturing method | Electricity | 5 | Expired |
| US4949004A | Gas discharge lamp having temperature controlled, liquid reservoir for liquified portion of gas | Electricity | 3 | Expired |
| US7486597B2 | Pick-up angle adjustment mechanism for optical disk apparatus | Physics | 1 | Active |
| US7346914B2 | Optical disk drive | Physics | 1 | Expired |
| US4429380A | Braking device for a pickup arm of a disk player or the like | Physics | 0 | Expired |
| US4984080A | Video IF signal detector | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.