Hirofumi Doi
21Patents
6h-index
42Co-inventors
69Inventor score
Filing activity: Feb 13, 1995 → Jul 16, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5601112A | Check valve | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6753629B2 | Brushless DC motor | Electricity | 25 | Expired |
| US6144120A | Stepping motor for stable control of position of driven body | Electricity | 19 | Expired |
| US6641292B2 | Illumination axis adjusting apparatus for automotive headlamps | Performing Operations; Transporting | 15 | Expired |
| US7990001B2 | Structure of motor terminal | Electricity | 12 | Active |
| US6744156B2 | Stepping motor having a predetermined number of teeth corresponding to magnetically stable points per rotor rotation | Electricity | 10 | Expired |
| US7053510B2 | Electrical actuator | Electricity | 6 | Expired |
| US5928866A | Method for preparing mutant genes | Chemistry; Metallurgy | 6 | Expired |
| US6182057A | Device, method, and program storage medium for executing genetic algorithm | Physics | 5 | Expired |
| US7820423B2 | Method and a system for predicting protein functional site, a method for improving protein function, and a function-modified protein | Emerging Cross-Sectional Technologies | 5 | Active |
| US8003346B2 | Mutant PCNA | Chemistry; Metallurgy | 5 | Active |
| US6571469B2 | Method for manufacturing modular board | Emerging Cross-Sectional Technologies | 3 | Expired |
| US9670255B2 | Modified biotin, mutant streptavidin, and use thereof | Physics | 3 | Active |
| US8546537B2 | Streptavidin having low immunogenicity and use thereof | Chemistry; Metallurgy | 3 | Active |
| US7231301B2 | Method and a system for predicting protein functional site, a method for improving protein function, and a function-modified protein | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8089185B2 | Actuator having a rotation prevention link plate | Electricity | 1 | Active |
| US11124549B2 | Modified biotin, streptavidin mutant, and usage of them | General | 0 | Revoked |
| US11286285B2 | Modified biotin, streptavidin mutant, and usage of them | Chemistry; Metallurgy | 0 | Active |
| US9051610B2 | RNA in situ hybridization | Chemistry; Metallurgy | 0 | Active |
| US7195894B2 | MKK7 activation inhibitor | Physics | 0 | Expired |
| US11161884B2 | Modified biotin, streptavidin mutant, and usage of them | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.