Average Co-Inventor Count = 3.33
ph-index = 9
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Kyowa Hakko Kogyo Co., Ltd. (21 from 730 patents)
2. Mitsubishi Denki Kabushiki Kaisha (11 from 21,351 patents)
3. Hitachi, Ltd. (5 from 42,508 patents)
4. Kyowa Hakko Kogyo Kabushiki Kaisha (3 from 45 patents)
5. Renesas Electronics Corporation (2 from 7,529 patents)
6. Sony Corporation (1 from 58,131 patents)
7. Tdk Corporation (1 from 7,976 patents)
8. The University of Tokyo (1 from 1,287 patents)
9. Riken Corporation (1 from 855 patents)
10. Jeol Ltd. (1 from 804 patents)
11. Tokyo Institute of Technology (1 from 567 patents)
12. Waseda University (1 from 158 patents)
13. Kyowa Hakko Kogyo (1 from 9 patents)
49 patents:
1. 11393606 - Radiation transmissive window and radition detector
2. 11119095 - Method for measuring tyrosine phosphatase and tyrosine kinase activity
3. 10630522 - Communication system, communication device, and communication method
4. 9437865 - Active material for lithium ion secondary battery, and lithium ion secondary battery
5. 9156827 - Anticancer agent
6. 9111649 - Tamper resistant semiconductor device with access control
7. 8829813 - Correction circuit, drive circuit, light-emitting device and correction method of current pulse waveform
8. 8438359 - Memory management method, information processing device, program creation method, and program
9. 7536110 - Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
10. 7391974 - Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals
11. 7272325 - Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
12. 7194210 - Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals
13. 7116908 - Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
14. 6603190 - Semiconductor device
15. 6515920 - Semiconductor data storing circuit device, method of checking the device and method of relieving the device from defective cell