Average Co-Inventor Count = 1.64
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. Kao Corporation (3 from 3,603 patents)
2. Zebra Co., Ltd. (3 from 69 patents)
6 patents:
1. 8697165 - Process for producing edible oil
2. 6896922 - Oil-cooked or baked potatoes
3. 6336761 - Knock-type writing instrument
4. 5846585 - Process for increasing the bulk of food having decreased bulk
5. 5846012 - Writing tool
6. 5716152 - Writing tool