Takao Soma
47Patents
16h-index
43Co-inventors
81Inventor score
Filing activity: Dec 27, 1982 → May 19, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5231690A | Wafer heaters for use in semiconductor-producing apparatus and heating units using such wafer heaters | Electricity | 271 | Expired |
| US5897970A | System for production of high-purity hydrogen, process for production of high-purity hydrogen, and fuel cell system | Emerging Cross-Sectional Technologies | 100 | Expired |
| US5741474A | Process for production of high-purity hydrogen | Emerging Cross-Sectional Technologies | 94 | Expired |
| US5612012A | Method for removing carbon monoxide from reformed gas | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5614001A | Hydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separator | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5998911A | Vibrator, vibratory gyroscope, and vibration adjusting method | Physics | 31 | Expired |
| US6018212A | Vibrator, vibratory gyroscope, and vibration adjusting method | Physics | 30 | Expired |
| US5294750A | Ceramic packages and ceramic wiring board | Electricity | 30 | Expired |
| US4942999A | Metal-ceramic joined composite bodies and joining process therefor | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5490228A | Heating units for use in semiconductor-producing apparatuses and production thereof | Electricity | 25 | Expired |
| US5411767A | Method for producing interconnector for solid electrolyte type fuel cell | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6046531A | Vibrator, vibratory gyroscope, and linear accelerometer | Physics | 23 | Expired |
| US4795724A | Silicon nitride sintered bodies and process for manufacturing the same | Chemistry; Metallurgy | 21 | Expired |
| US6192756A | Vibrators vibratory gyroscopes a method of detecting a turning angular rate and a linear accelerometer | Physics | 21 | Expired |
| US5292599A | Cell units for solid oxide fuel cells and power generators using such cell units | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5432024A | Porous lanthanum manganite sintered bodies and solid oxide fuel cells | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6186003A | Vibratory gyroscope, vibrator used in this gyroscope, method for analyzing vibration of the vibrator, method for supporting the vibrator, and method for manufacturing the vibratory gyroscope | Physics | 15 | Expired |
| US6439051B2 | Vibrators, vibratory gyroscopes, devices for measuring a linear acceleration and a method of measuring a turning angular rate | Physics | 15 | Expired |
| US4692420A | Silicon nitride sintered body and manufacturing method thereof | Chemistry; Metallurgy | 15 | Expired |
| US6227048A | Vibrators, vibratory gyroscopes, devices for measuring a linear acceleration and a method of measuring a turning angular rate | Physics | 15 | Expired |
| US6346765B1 | Vibrator, vibratory gyroscope, and vibrator adjusting method | Physics | 12 | Expired |
| US4798493A | Ceramic-metal composite body | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5163770A | Method of bonding members having different coefficients of thermal expansion | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4722915A | Zirconia porcelain | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5489483A | Porous sintered bodies and solid oxide fuel cells using such porous sintered bodies as air electrodes | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.