Masayuki Hasegawa
21Patents
7h-index
47Co-inventors
69Inventor score
Filing activity: Oct 5, 1983 → Jun 24, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD282378S | Marking pen | General | 50 | Expired |
| US8563096B2 | Vertical film formation apparatus and method for using same | Chemistry; Metallurgy | 31 | Active |
| US7430688B2 | Network monitoring method and apparatus | Electricity | 25 | Expired |
| US5461279A | Flat fluorescent lamp having a luminescent surface with a diffusion groove | Electricity | 15 | Expired |
| US4939990A | Multi-surfaced rotary stamping apparatus | Performing Operations; Transporting | 13 | Expired |
| US6340635B1 | Resist pattern, process for the formation of the same, and process for the formation of wiring pattern | Emerging Cross-Sectional Technologies | 9 | Expired |
| US10726274B1 | Investigation assist system and investigation assist method | Electricity | 7 | Active |
| US5203637A | Cap for writing implement with air vent and guide | Performing Operations; Transporting | 6 | Expired |
| US5961695A | Method for treating silane-containing gas | Chemistry; Metallurgy | 5 | Expired |
| US7559992B2 | Semiconductor processing apparatus and method | Electricity | 4 | Active |
| US8216648B2 | Film formation method and apparatus | Electricity | 4 | Active |
| US11457172B2 | Information processing device and reproduction control method | Electricity | 4 | Active |
| US4533404A | Soldering fluxes | Performing Operations; Transporting | 2 | Expired |
| US11276193B2 | Information processing device | Physics | 1 | Active |
| US9126838B2 | Method for purifying chlorosilanes | Chemistry; Metallurgy | 1 | Active |
| US8461059B2 | Batch CVD method and apparatus for semiconductor process | Electricity | 1 | Active |
| US9620685B2 | Surface mount light-emitting device | Electricity | 0 | Active |
| US10151028B2 | Film deposition apparatus | Electricity | 0 | Active |
| US8383848B2 | Transition metal compound and catalyst for olefin polymerization | Chemistry; Metallurgy | 0 | Active |
| US11100332B2 | Investigation assist system and investigation assist method | Physics | 0 | Active |
| US8703000B2 | Slimming method of carbon-containing thin film and oxidation apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.