Takuya Okuno
25Patents
12h-index
43Co-inventors
81Inventor score
Filing activity: Oct 21, 1991 → Dec 7, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5785502A | Control apparatus for variable displacement compressor | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US6123514A | Sealing structure for compressors | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6149398A | Variable capacity piston- operated refrigerant compressor with an oil separating means | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6803634B2 | Stabilization in device characteristics of a bipolar transistor that is included in a semiconductor device with a CMOSFET | Electricity | 19 | Expired |
| US6146106A | Electromagnetic valve | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6189434A | Single-headed piston type swash-plate-operated compressor and a method of producing a swash plate | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5616008A | Variable displacement compressor | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6135722A | Positional relationship of a bearing in the shutoff member of a variable displacement compressor | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6290470A | Shaft sealing assembly and compressor incorporating the same | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5181453A | Variable displacement compressor | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5842835A | Variable displacement compressor and its assembling method | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6077047A | Variable displacement compressor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6217293A | Variable displacement compressor | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5762476A | Variable capacity single-headed piston refrigement compressor | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5893706A | Cooling structure for compressor | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6065943A | Refrigerant compressor having improved drive power transmission unit | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5975859A | Control valve in variable displacement compressor and its assembling method | Physics | 8 | Expired |
| US5986302A | Semiconductor memory device | Electricity | 5 | Expired |
| US5890878A | Valve structure in compressor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6338613B1 | Piston-type compressor | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6126406A | Variable displacement compressor | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6420281B2 | Method of forming oxidized film on SOI substrate | Electricity | 2 | Expired |
| US6578372B2 | Apparatus and method for controlling variable displacement compressor | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US8907422B2 | Semiconductor device | Electricity | 0 | Active |
| US10585033B2 | Microparticle measuring device and microparticle analysis method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.