Jun Nitta
45Patents
15h-index
40Co-inventors
81Inventor score
Filing activity: May 30, 1989 → Jan 13, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5287521A | Method and apparatus for releasing and obtaining shared and exclusive locks | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5659560A | Apparatus and method for driving oscillation polarization selective light source, and optical communication system using the same | Electricity | 56 | Expired |
| US5251318A | Multiprocessing system comparing information copied from extended storage before and after processing for serializing access to shared resource | Physics | 56 | Expired |
| US5590145A | Light-emitting apparatus capable of selecting polarization direction, optical communication system, and polarization modulation control method | Electricity | 42 | Expired |
| US5212577A | Optical communication equipment and optical communication method | Electricity | 41 | Expired |
| US5901166A | Oscillation polarization mode selective semiconductor laser, light transmitter and optical communication system using the laser | Electricity | 39 | Expired |
| US5309275A | Semiconductor optical amplifying apparatus | Electricity | 31 | Expired |
| US5109511A | Shared resource managing method and system | Physics | 30 | Expired |
| US5606176A | Strained quantum well structure having variable polarization dependence and optical device including the strained quantum well structure | Electricity | 25 | Expired |
| US6031860A | Optical device capable of switching output intensity of light of predetermined polarized wave, optical transmitter using the device, network using the transmitter, and method of driving optical device | Electricity | 25 | Expired |
| US6252895A | Distributed feedback semiconductor laser in which light intensity distributions differ in different polarization modes, and driving method therefor | Electricity | 20 | Expired |
| US5471335A | Semiconductor optical amplifier device and a method of using the same | Electricity | 20 | Expired |
| US5202782A | Optical communication method and optical communication system | Electricity | 19 | Expired |
| US6334014A | Optical fiber apparatus provided with demultiplexing/multiplexing unit on fiber's end portion, optical detecting apparatus provided with demultiplexing/multiplexing unit on its light receiving surface, and optical transmission system using the same | Physics | 17 | Expired |
| US5521754A | Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region | Electricity | 16 | Expired |
| US5822352A | Optical semiconductor apparatus, fabrication method thereof, modulation method therefor, light source apparatus and optical communication system using the same | Electricity | 14 | Expired |
| US6564323B2 | Personal information controlling method and personal information controlling apparatus | Physics | 14 | Expired |
| US5790581A | Oscillation polarization mode selective semiconductor laser, light transmitter and optical communication system using the laser | Electricity | 14 | Expired |
| US5608572A | Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region | Electricity | 13 | Expired |
| US5926497A | Diffraction grating with alternately-arranged different regions, optical semiconductor device with the diffraction grating, and apparatus and optical communication system using the same | Electricity | 13 | Expired |
| US5223972A | Optical amplifiers, optical communication systems networks using the amplifier and integrated optical nodes including the amplifier | Electricity | 12 | Expired |
| US6304329A | Gyro and semiconductor device having a plurality of laser diodes | Physics | 12 | Expired |
| US5157544A | Waveguide optical element and its driving method | Electricity | 9 | Expired |
| US5309268A | Optical communication system and optical communication method | Electricity | 9 | Expired |
| US6807201B1 | Laser with phase controlling region and method for driving the same | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.