Masahiro Serizawa
71Patents
11h-index
59Co-inventors
81Inventor score
Filing activity: Aug 26, 1994 → Feb 8, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7069212B2 | Audio decoding apparatus and method for band expansion with aliasing adjustment | Physics | 99 | Expired |
| US7555434B2 | Audio decoding device, decoding method, and program | Physics | 81 | Expired |
| US5778334A | Speech coders with speech-mode dependent pitch lag code allocation patterns minimizing pitch predictive distortion | Physics | 51 | Expired |
| US7058571B2 | Audio decoding apparatus and method for band expansion with aliasing suppression | Physics | 47 | Expired |
| US7050751B2 | Image forming system with temporary storage trays between sheet storage units and image forming apparatus | Physics | 30 | Expired |
| US5930001A | Copier which rotates an image based on the recognition of an extracted character from various directions | Physics | 24 | Expired |
| US5937378A | Wideband speech coder and decoder that band divides an input speech signal and performs analysis on the band-divided speech signal | Physics | 24 | Expired |
| US6581031B1 | Speech encoding method and speech encoding system | Physics | 20 | Expired |
| US5809183A | Method and apparatus for recognizing character information at a variable magnification | Physics | 18 | Expired |
| US5956672A | Wide-band speech spectral quantizer | Physics | 11 | Expired |
| US7272554B2 | Reduction of speech quality degradation caused by packet loss | Physics | 11 | Expired |
| US5687284A | Excitation signal encoding method and device capable of encoding with high quality | Physics | 10 | Expired |
| US6343197B1 | Image formation processing having image rotation function | Electricity | 9 | Expired |
| US5940583A | Image forming apparatus | Electricity | 9 | Expired |
| US6169863A | Image formation apparatus capable of receiving plural jobs | Physics | 8 | Expired |
| US5748839A | Quantization of input vectors and without rearrangement of vector elements of a candidate vector | Physics | 8 | Expired |
| US6101464A | Coding and decoding system for speech and musical sound | Physics | 8 | Expired |
| US6453133B1 | Image process apparatus with automatic setting of proof printing mode | Physics | 7 | Expired |
| US7389084B2 | Image forming system with temporary storage trays between sheet storage units and image forming apparatus | Physics | 6 | Active |
| US7233410B2 | Printer control apparatus and method of controlling the same, printer and method of controlling the same, reader and method of controlling the same, and image forming system | Electricity | 6 | Expired |
| US5774840A | Speech coder using a non-uniform pulse type sparse excitation codebook | Physics | 6 | Expired |
| US7941319B2 | Audio decoding apparatus and decoding method and program | Physics | 5 | Active |
| US7380780B2 | Sheet supplying apparatus and image forming system | Physics | 5 | Expired |
| US7499853B2 | Speech decoder and code error compensation method | Physics | 5 | Active |
| US6014459A | Image forming apparatus | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.