Masataka Yahagi
31Patents
7h-index
17Co-inventors
66Inventor score
Filing activity: Jun 26, 1998 → Feb 22, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8148245B2 | Method for producing a-IGZO oxide thin film | Emerging Cross-Sectional Technologies | 47 | Active |
| US5939043A | Process for preparing Li.sub.x Mn.sub.2 O.sub.4 intercalation compounds | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7699965B2 | Zinc oxide-based transparent conductor and sputtering target for forming the transparent conductor | Emerging Cross-Sectional Technologies | 14 | Active |
| US7635440B2 | Sputtering target, thin film for optical information recording medium and process for producing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7217310B2 | Metal powder for powder metallurgy and iron-based sintered compact | Performing Operations; Transporting | 12 | Expired |
| US7279211B2 | Sputtering target containing zinc sulfide as major component, optical recording medium on which phase change optical disk protective film containing zinc sulfide as major component is formed by using the target, and method for manufacturing the sputtering target | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7156964B2 | Sputtering target for phase-change memory, film for phase change memory formed by using the target, and method for producing the target | Electricity | 10 | Expired |
| US8728358B2 | Sintered compact, amorphous film and crystalline film of composite oxide, and process for producing the films | Chemistry; Metallurgy | 7 | Active |
| US7347969B2 | Iron-based sintered compact and method for production thereof | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8430978B2 | Sputtering target and method for production thereof | Chemistry; Metallurgy | 6 | Expired |
| US8277694B2 | Sintered compact of composite oxide, amorphous film of composite oxide, process for producing said film, crystalline film of composite oxide and process for producing said film | Chemistry; Metallurgy | 5 | Active |
| US7718095B2 | Sputtering target, thin film for optical information recording medium and process for producing the same | Emerging Cross-Sectional Technologies | 5 | Active |
| US8007693B2 | Zinc oxide based transparent electric conductor, sputtering target for forming of the conductor and process for producing the target | Chemistry; Metallurgy | 4 | Active |
| US8882975B2 | Sb-Te base alloy sinter sputtering target | Physics | 4 | Active |
| US7484546B2 | Sputtering target for phase-change memory, film for phase change memory formed by using the target, and method for producing the target | Electricity | 4 | Active |
| US7344660B2 | Sputtering target and process for producing the same | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7789948B2 | Hydrogen separation membrane, sputtering target for forming said hydrogen separation membrane, and manufacturing method thereof | Emerging Cross-Sectional Technologies | 4 | Active |
| US8758497B2 | Sputtering target of sintered Ti—Nb based oxide, thin film of Ti—Nb based oxide, and method of producing the thin film | Physics | 3 | Active |
| US8252206B2 | Amorphous film of composite oxide, crystalline film of composite oxide, method of producing said films and sintered compact of composite oxide | Chemistry; Metallurgy | 3 | Active |
| US7897068B2 | Sputtering target, thin film for optical information recording medium and process for producing the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US7727639B2 | Iron-based sintered compact and method for production thereof | Emerging Cross-Sectional Technologies | 2 | Active |
| US7691172B2 | Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body | Performing Operations; Transporting | 2 | Expired |
| US7666245B2 | Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body | Performing Operations; Transporting | 2 | Active |
| US7892457B2 | Sputtering target, thin film for optical information recording medium and process for producing the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US8501052B2 | Thin film comprising titanium oxide as main component and sintered compact sputtering target comprising titanium oxide as main component | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.