Average Co-Inventor Count = 2.53
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. Daikin Industries, Ltd. (1 from 4,273 patents)
2. Dai-ichi High Frequency Co., Ltd. (1 from 25 patents)
3. Daiwa House Industry Co., Ltd (1 from 12 patents)
4. Hamada Printing Press Mfg. Co., Ltd. (1 from 6 patents)
5. Hamada Printing Co., Ltd. (1 from 1 patent)
4 patents:
1. 5713130 - Partially thick-walled elongated metallic member and methods of making
2. 4987830 - Paper feed device for rotary press
3. 4828451 - Industrial robot
4. 4802632 - Method and apparatus for treating end portion of roll paper