Average Co-Inventor Count = 3.00
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. Kokuyo Co., Ltd. (4 from 166 patents)
2. Takano Co., Ltd. (1 from 38 patents)
3. Kokuyo Kabushiki Kaisha (1 from 8 patents)
5 patents:
1. 5384998 - Curved panel
2. 5330280 - Filing apparatus of both-side opening/closing type
3. 5313893 - Desk
4. 5102196 - Chair provided with a backrest
5. 4966411 - Chair provided with a backrest