Average Co-Inventor Count = 4.00
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. Taiyo Yuden Co., Ltd. (2 from 1,763 patents)
2. Taiyu Yuden Co., Ltd. (1 from 1 patent)
3 patents:
1. 5705247 - Optical information medium and method for fabricating the same
2. 5616450 - Method for fabricating an optical information medium
3. 5470691 - Optical information medium