Hiroshi Koga
42Patents
14h-index
49Co-inventors
81Inventor score
Filing activity: Feb 20, 1981 → Aug 22, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7313699B2 | Automatic authentication method and system in print process | Physics | 297 | Expired |
| US7075670B1 | Server apparatus for managing print attribute information and print controlling | Physics | 47 | Expired |
| US4448962A | Substituted quinoline carboxylic acid derivatives | Chemistry; Metallurgy | 43 | Expired |
| US6191615A | Logic circuit having reduced power consumption | Electricity | 43 | Expired |
| US6618566B2 | Print control apparatus for generating accounting information relating to a print job | Physics | 34 | Expired |
| US4398029A | Quinoline carboxylic acid derivatives and process for the preparation | Chemistry; Metallurgy | 31 | Expired |
| US5658888A | Erythromycin derivatives | Human Necessities | 23 | Expired |
| US4641570A | Swash plate type compressor having a center cavity in surface of piston shoe | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7286250B2 | Print control apparatus and method, and print system | Physics | 20 | Expired |
| US5646308A | Benzopyran derivatives | Chemistry; Metallurgy | 18 | Expired |
| US5412117A | Benzopyran derivatives | Chemistry; Metallurgy | 16 | Expired |
| US6646759B1 | Printing apparatus and image output control apparatus for processing image data using a dither pattern | Physics | 16 | Expired |
| US5977167A | Benzopyran and benzoxazine derivatives | Chemistry; Metallurgy | 15 | Expired |
| US6218411A | Therapeutics for diabetic complications | Human Necessities | 14 | Expired |
| US5874446A | Benzopyran derivatives | Chemistry; Metallurgy | 12 | Expired |
| US4429127A | Quinoline carboxylic acid derivative | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5614633A | Benzopyran derivatives | Chemistry; Metallurgy | 12 | Expired |
| US6388757B1 | Printing apparatus, printing system, and a method for acquiring character resources of the printing system | Physics | 10 | Expired |
| US8646742B2 | Seat rail device | Performing Operations; Transporting | 9 | Active |
| US8800947B2 | Stepped lowering device and stepped lifter device | Emerging Cross-Sectional Technologies | 9 | Active |
| US8490940B2 | Seat track apparatus | Performing Operations; Transporting | 8 | Active |
| US8102092B2 | Split cores for motor stator, motor stator, permanent magnet type synchronous motor and punching method by split core punching die | Emerging Cross-Sectional Technologies | 7 | Active |
| US4816479A | Xanthone derivatives and process for producing the same | Chemistry; Metallurgy | 4 | Expired |
| US7889375B2 | Print control apparatus and method, and print system | Physics | 4 | Active |
| US6248777A | Remedies for peripheral circulation disturbances | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.