Masao Hashimoto
29Patents
11h-index
45Co-inventors
75Inventor score
Filing activity: May 28, 1974 → Sep 16, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7170618B2 | Remote printing systems and methods for portable digital devices | Physics | 57 | Expired |
| US5863325A | Process for producing high purity silicon carbide powder for preparation of a silicon carbide single crystal and single crystal | Chemistry; Metallurgy | 35 | Expired |
| US4922484A | ISDN remote switching unit for accommodating analog and digital lines | Electricity | 27 | Expired |
| US4944022A | Method of creating dictionary for character recognition | Physics | 26 | Expired |
| US7510530B2 | Pulse wave measuring apparatus | Human Necessities | 22 | Expired |
| US6720082B1 | Glass improved in impact resistance | Emerging Cross-Sectional Technologies | 22 | Expired |
| US3941837A | Method of treating an aqueous solution of acrylamide | Performing Operations; Transporting | 17 | Expired |
| US4508459A | Clock having a rotationally displaceable clock movement | Physics | 17 | Expired |
| US4464539A | Process for producing .alpha.,.beta.-unsaturated carboxylic acids or esters thereof | Chemistry; Metallurgy | 15 | Expired |
| US7938025B2 | Array type capacitance sensor | Human Necessities | 11 | Active |
| US6251353A | Production method of silicon carbide particles | Chemistry; Metallurgy | 11 | Expired |
| US4731782A | Digital local switching system for integrated service digital network | Electricity | 10 | Expired |
| US7326180B2 | Pulse wave monitoring device | Human Necessities | 10 | Expired |
| US7069791B2 | Array-type capacitive pressure pulse wave sensor, and pulse wave measuring apparatus having the same | Human Necessities | 8 | Expired |
| US7232413B2 | Pulse wave measuring apparatus | Human Necessities | 7 | Expired |
| US6660556B2 | Method of manufacturing a solar battery | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7332216B2 | Film-reinforced glasses | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6961069B2 | Method of and system for visually selecting process area for efficient image processing | Physics | 4 | Expired |
| US4169107A | Process for manufacturing an amide compound using aluminum nitrate promoter | Performing Operations; Transporting | 3 | Expired |
| US7298518B2 | Remote printing systems and methods for portable digital devices | Physics | 2 | Expired |
| US7144373B2 | Apparatus and method for detecting pulse wave | Human Necessities | 2 | Expired |
| US4728189A | Atomic absorption spectrophotometer | Physics | 1 | Expired |
| US4569948A | Preparation process of acetic acid | Chemistry; Metallurgy | 1 | Expired |
| US7483161B2 | Remote printing systems and methods for portable digital devices | Physics | 1 | Active |
| US4950781A | Preparation process for aromatic hydroxycarboxylic acid | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.