Jun Kitagawa
20Patents
7h-index
42Co-inventors
69Inventor score
Filing activity: Jul 27, 1983 → Jun 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4857089A | Ceramic honeycomb filter for purifying exhaust gases | Emerging Cross-Sectional Technologies | 93 | Expired |
| US4740408A | Ceramic honeycomb body | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5144090A | Method for preparing acrolein or methacrolein | Performing Operations; Transporting | 26 | Expired |
| US4556543A | Ceramic honeycomb catalytic converters having high thermal shock resistance | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4988661A | Steam reforming catalyst for hydrocarbons and method of producing the catalyst | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5198579A | Catalyst for oxidizing methacrolein and method for preparing methacrylic acid | Performing Operations; Transporting | 12 | Expired |
| US7385157B2 | Laser beam welding method and apparatus | Performing Operations; Transporting | 10 | Expired |
| US4771028A | Heat resistant composition and method of producing the same | Chemistry; Metallurgy | 7 | Expired |
| US5093292A | Chromium oxide catalyst impregnation regeneration method | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11879730B2 | Laser interferometer having a vibrator to modulate light for displacement and vibration velocity measurement | Physics | 1 | Active |
| US11736049B2 | Motor controller | Electricity | 1 | Active |
| US11364569B2 | Metal member and method of manufacturing the same | Performing Operations; Transporting | 1 | Active |
| US8513564B2 | Plasma welding torch having a nozzle with first and second orifices, and welding method using plasma welding torch having a nozzle with first and second orifices | Electricity | 1 | Active |
| US8283591B2 | Welding apparatus and welding method | Performing Operations; Transporting | 1 | Active |
| US10199972B2 | Control device for an electric motor | Electricity | 0 | Active |
| US12145445B2 | Synchronous machine drive control device, and vehicle equipped with synchronous machine subjected to drive control by said synchronous machine drive control device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11251727B2 | Electric motor control device | Electricity | 0 | Active |
| US12184206B2 | Controller for rotary electric machine | Electricity | 0 | Active |
| US11833612B2 | Metal member and method of manufacturing the same | Performing Operations; Transporting | 0 | Active |
| US12212258B2 | Controller for rotary electric machine and electric power steering apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.