Jun Iwasaki
51Patents
13h-index
72Co-inventors
87Inventor score
Filing activity: Oct 14, 1982 → Sep 24, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6088345A | Communication method, base station and terminal apparatus | Electricity | 97 | Expired |
| US5764363A | Apparatus for observing a surface using polarized light | Physics | 66 | Expired |
| US5321721A | Spread spectrum communication system and transmitter-receiver | Electricity | 58 | Expired |
| US5982977A | Apparatus and method for synthesizing information signal and reproduction control signal and information signal recording apparatus | Electricity | 44 | Expired |
| US7426396B2 | Wireless communication system, wireless communication apparatus, and wireless communication method | Electricity | 35 | Expired |
| US5504776A | Spread spectrum communication system and transmitter-receiver | Electricity | 29 | Expired |
| US5581345A | Confocal laser scanning mode interference contrast microscope, and method of measuring minute step height and apparatus with said microscope | Performing Operations; Transporting | 28 | Expired |
| US5452382A | Optical waveguide device and optical microscope using the same | Physics | 26 | Expired |
| US5691471A | Acceleration and angular velocity detector | Physics | 23 | Expired |
| US6122311A | Demodulating method and apparatus, receiving method and apparatus and communication apparatus | Electricity | 20 | Expired |
| US8369777B2 | Communication apparatus, program, communication method and communication system | Electricity | 18 | Active |
| US7254418B2 | System, method, apparatus, control method thereof and computer program for wireless communications | Electricity | 14 | Expired |
| US4480238A | YIG Tuned filter having coupling loops formed from conductively layered insulated plates | Electricity | 13 | Expired |
| US6084851A | Demodulating method and apparatus, receiving method and apparatus, and communication apparatus | Electricity | 9 | Expired |
| US6081721A | Communication method, base station and terminal apparatus | Electricity | 9 | Expired |
| US5347228A | BPSK demodulator using compound phase-locked loop | Electricity | 9 | Expired |
| US5444689A | Detection of phase and amplitude modulation information on optical medium with a waveguide | Physics | 9 | Expired |
| US5703527A | Frequency modulated signal demodulator circuit and communication terminal equipment | Electricity | 8 | Expired |
| US8838024B2 | Near field communication apparatus, display control method, and program | Electricity | 7 | Active |
| US5389783A | Confocal laser scanning microscope with dual mode waveguide | Physics | 6 | Expired |
| US6259997A | Signal power detection apparatus | Electricity | 5 | Expired |
| US6643100B2 | Magnetic head having a chamfer thereof oriented toward medium and method for manufacturing the same | Physics | 4 | Expired |
| US7814319B2 | Device and method for information communication, system and method for supporting information exchange and human relation fostering, and computer program | Physics | 3 | Expired |
| US5694220A | Minute step measuring method | Performing Operations; Transporting | 3 | Expired |
| US10424876B1 | Connector, electronic device, and method for mounting connector | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.