Average Co-Inventor Count = 5.21
ph-index = 1
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. Ricoh Company, Ltd. (7 from 28,584 patents)
2. Chotaro Engineering, Co. (1 from 4 patents)
7 patents:
1. 9604344 - Dry cleaning casing, dry cleaning apparatus and attachment method of screen plate
2. 9597716 - Dry-type cleaning chassis, dry-type cleaning device, and dry-type cleaning system
3. 9452454 - Dry type cleaning housing and dry type cleaning apparatus
4. 9421588 - Anti-cleanser dispersing element, object holder, and dry washing device
5. 9358589 - Dry type cleaning case and dry type cleaning device
6. 8713750 - Dry-type cleaning chassis and dry-type cleaning device
7. 8607259 - Disk laminate, disk cartridge, disk loading/unloading mechanism, disk conveying device, disk conveying mechanism, and thin disk driving system