Masahiro Seki
26Patents
6h-index
49Co-inventors
69Inventor score
Filing activity: Dec 7, 1990 → Jun 2, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7135802B2 | Claw pole motor stator | Electricity | 42 | Expired |
| US7466057B2 | Claw pole motor stator | Electricity | 30 | Expired |
| US5342608A | Gas containing contrast agent particles having external magnetic layer | Human Necessities | 17 | Expired |
| US5466417A | Sterilizer using high temperature steam | Human Necessities | 7 | Expired |
| US5128512A | Laser beam machining device | Performing Operations; Transporting | 7 | Expired |
| US7191856B2 | Power transmission system for hybrid vehicle | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7345395B2 | Motor stator core with skewed slots and production process therefor | Electricity | 6 | Expired |
| US7898216B2 | Rechargeable battery device having a protection circuit for protecting from overcharge and overdischarge | Emerging Cross-Sectional Technologies | 3 | Active |
| US8852836B2 | Toner, method for producing the same, and image forming apparatus | Physics | 2 | Active |
| US5254831A | Method of manufacturing bobbins for sewing machine | Performing Operations; Transporting | 1 | Expired |
| US8089215B2 | Discharge lamp lighting device, headlight device and vehicle having the same | Electricity | 1 | Active |
| US9152066B2 | Toner, developer, process cartridge, and image forming apparatus | Physics | 1 | Active |
| US12013038B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10254674B2 | Carrier for developer of electrostatic latent image, developer, and image forming apparatus | Physics | 0 | Active |
| US11448320B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11796004B2 | Sealing device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11975652B2 | Notification device | Physics | 0 | Active |
| US10444651B2 | Carrier, developer, supplemental developer, image forming apparatus, image forming method, and process cartridge | Physics | 0 | Active |
| US11106150B2 | Carrier, developer, method, and apparatus for forming electrophotographic image, and process cartridge | Physics | 0 | Active |
| US10025213B2 | Toner, toner stored unit, and image forming apparatus | Physics | 0 | Active |
| US8090286B2 | Image forming apparatus and toner supply container used therefor | Physics | 0 | Active |
| US12306582B2 | Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge | Physics | 0 | Active |
| US11965558B2 | Sealing device | Performing Operations; Transporting | 0 | Active |
| US10474051B2 | Carrier for developer of electrostatic latent image, two-component developer, replenishing developer, image forming apparatus, and toner stored unit | Physics | 0 | Active |
| US11927218B2 | Sealing device and method for applying grease thereto | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.