Takayuki Ohta
25Patents
7h-index
56Co-inventors
72Inventor score
Filing activity: Apr 6, 1983 → Mar 25, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6304168A | Door approach communication apparatus and door lock control apparatus | Physics | 57 | Expired |
| US6002341A | Door lock control apparatus for a vehicle | Physics | 31 | Expired |
| US6931313B2 | Vehicular steering device | Performing Operations; Transporting | 28 | Expired |
| US5221788A | Polyurethane polyol and polyurethane coating composition employing said polyol | Chemistry; Metallurgy | 27 | Expired |
| US7719284B2 | Apparatus for measuring voltage | Physics | 24 | Active |
| US5941498A | Rotation mechanism for rotatable seat | Performing Operations; Transporting | 18 | Expired |
| US7171296B2 | Integrated control apparatus for vehicle | Performing Operations; Transporting | 14 | Expired |
| US4965302A | Thermoplastic polyester resin composition and molded articles produced therefrom | Chemistry; Metallurgy | 7 | Expired |
| US4438256A | Copolyamide acid and copolyimide | Chemistry; Metallurgy | 6 | Expired |
| US6998969B2 | Door lock apparatus for vehicle | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5138014A | Silicate compound modified by hydroxyl containing compounds | Chemistry; Metallurgy | 5 | Expired |
| US7509772B2 | Vehicle door opening and closing apparatus | Fixed Constructions | 5 | Active |
| US7441627B2 | Vehicle control system | Performing Operations; Transporting | 5 | Active |
| US7066295B2 | Vehicle steering apparatus and control method therefor | Performing Operations; Transporting | 4 | Expired |
| US8461808B2 | DC-DC converter and voltage detector using same | Emerging Cross-Sectional Technologies | 2 | Active |
| US5124431A | Process for producing azo group-containing polymer having azo group in main chain | Chemistry; Metallurgy | 2 | Expired |
| US5319045A | Copolymer and composition containing the copolymer | Chemistry; Metallurgy | 2 | Expired |
| US5102979A | Polyester and process for producing the same | Chemistry; Metallurgy | 2 | Expired |
| US7315773B2 | Vehicle motion control method and vehicle motion control apparatus | Performing Operations; Transporting | 1 | Expired |
| US8638034B2 | Multi-micro hollow cathode light source and atomic absorption sepctrometer | Electricity | 0 | Active |
| US7813229B2 | Gain setting method for optical disk reproducing apparatus | Physics | 0 | Active |
| US9041937B2 | Interference measurement device and measurement method | Physics | 0 | Active |
| US6504880B1 | ASK modulation circuit | Electricity | 0 | Expired |
| US9862407B2 | Electric power steering apparatus | Performing Operations; Transporting | 0 | Active |
| US7382742B2 | Communication system, information collecting system and method therefor | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.