Masaru Wada
84Patents
12h-index
116Co-inventors
87Inventor score
Filing activity: Mar 7, 1980 → Jul 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4304670A | Blood filter with air trap and distributing chamber | Human Necessities | 62 | Expired |
| USD303428S | Culture dish | General | 40 | Expired |
| USD320275S | Medical applicator | General | 33 | Expired |
| US6579829B2 | Developer composition and heat sensitive recording material | Performing Operations; Transporting | 23 | Expired |
| US4505252A | Hollow dishes with meltable cores and method of making such dishes | Human Necessities | 21 | Expired |
| US4675074A | Method of manufacturing semiconductor device | Electricity | 20 | Expired |
| US6218156A | Gene encoding carbonyl reductase, and methods for its use | Chemistry; Metallurgy | 19 | Expired |
| US7183681B2 | Electric power steering apparatus | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6072024A | Production process of cross-linked polyaspartic acid resin | Chemistry; Metallurgy | 18 | Expired |
| US4546478A | Semiconductor laser | Electricity | 18 | Expired |
| US5200729A | Permanent magnet and magnetization apparatus for producing the permanent magnet | Electricity | 16 | Expired |
| US4371967A | Semiconductor laser | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5068866A | Semiconductor laser apparatus | Electricity | 12 | Expired |
| US5647896A | Color-developing agents and color-developing sheets | Performing Operations; Transporting | 12 | Expired |
| US4804783A | Process for producing diphenylamines or N,N'-diphenyl-phenylenediamines | Chemistry; Metallurgy | 11 | Expired |
| US4366568A | Semiconductor laser | Electricity | 10 | Expired |
| USD284400S | Case for electronic clinical thermometer | General | 9 | Expired |
| US4377865A | Semiconductor laser | Electricity | 8 | Expired |
| USD285182S | Case for electronic clinical thermometer | General | 8 | Expired |
| US5136086A | Preparation process of aliphatic isocyanate | Chemistry; Metallurgy | 8 | Expired |
| US6346569B1 | Production process of cross-linked polysuccinimide resin | Chemistry; Metallurgy | 8 | Expired |
| US7615775B2 | Semiconductor apparatus and process for fabricating same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4731453A | Process for producing 1, 3-dialkyl-2-imidazolidinone | Chemistry; Metallurgy | 7 | Expired |
| US6448052B2 | Carbonyl reductase enzyme and methods for its use | Chemistry; Metallurgy | 7 | Expired |
| USD309011S | Artificial lung | General | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.