Average Co-Inventor Count = 3.09
ph-index = 3
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. Hitachi, Ltd. (9 from 42,508 patents)
2. Ricoh Company, Ltd. (3 from 28,577 patents)
12 patents:
1. 8760501 - Stereo camera apparatus and vehicle-mountable monitoring apparatus using same
2. 8213083 - Wavelength selection filter, filter unit, light source device, optical apparatus, and refractive index sensor
3. 8045020 - Imaging apparatus having specific mode switching sequence and hard disk drive appearance to externally-connected devices
4. 8040768 - Information recording apparatus
5. 8035068 - Imaging device and imaging apparatus
6. 7865024 - Encoding apparatus, video camera
7. 7706221 - Information recording/reproducing apparatus
8. 7457512 - Information recording device
9. 7317837 - Encoding apparatus, video camera
10. 7269112 - Information recording apparatus
11. 7116620 - System and method for controlling recording state transitions in an information recording apparatus
12. 6771574 - Disk device, read control method for management information in disk device, and data processing terminal device using that disk device