Average Co-Inventor Count = 2.47
ph-index = 6
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. Nippon Telegraph and Telephone Public Corporation (5 from 522 patents)
2. Sony Corporation (4 from 58,132 patents)
3. Sumitomo Electric Industries, Limited (4 from 10,273 patents)
4. Sony Computer Entertainment Inc. (2 from 1,799 patents)
5. Sumitono Electric Inds., Ltd. (1 from 1 patent)
11 patents:
1. 8447355 - Communication system, settlement management apparatus and method, portable information terminal and information processing method, and program
2. 8280435 - Communication system, settlement management apparatus and method, portable information terminal and information processing method, and program
3. 7634295 - Communication system, settlement management apparatus and method, portable information terminal and information processing method, and program
4. 7292997 - Apparatus and method of receiving order, storage medium, and method of point service
5. 7115034 - Information processing system that seamlessly connects real world and virtual world
6. 7039605 - Settlement intermediation processing apparatus, storage medium in which a program for settlement intermediation processing is stored, computer program for settlement intermediation, online shop apparatus, and on-line shopping method and system
7. 4421540 - System for producing an optical fiber preform with gas volume control
8. 4414008 - Process for producing optical fiber preform
9. 4406680 - Process for producing high-purity silica glass
10. 4338111 - Process for producing a glass preform for optical fiber
11. 4318726 - Process for producing optical fiber preform