Average Co-Inventor Count = 2.87
ph-index = 4
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. Yamamoto Kogaku Co., Ltd. (2 from 120 patents)
2. Sharp Kabushiki Kaisha Corporation (1 from 25,537 patents)
3. Sharp Corporation (1 from 847 patents)
4. Noritsu Koki Co., Ltd. (1 from 439 patents)
4 patents:
1. 7192137 - Sports goggle
2. 7170058 - Device for assisting a person in rescue operations under hazardous situations
3. 7072504 - Image synthesis apparatus
4. 6101007 - One-visual-point image display apparatus and multi-visual-points image