Average Co-Inventor Count = 1.54
ph-index = 7
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. Other (8 from 832,718 patents)
2. Hitachi Zosen Corporation (2 from 278 patents)
3. Yokoyama Sankoh Co., Ltd. (2 from 3 patents)
4. Nippon Danbohru Co., Ltd. (1 from 1 patent)
10 patents:
1. 6257412 - Folded cushioning material for packaging
2. 6254523 - Method of imparting directional permanency of folding to sheet, and apparatus therefor
3. 6199700 - Cushioning material for packaging
4. 6190756 - Hollow connected body and packaging material
5. 6132349 - Fold construction of corrugated fiberboard
6. 6129655 - Method of folding and shaping sheet, and apparatus for folding and
7. 5030510 - Freshness preservative packing material for foodstuffs and method of
8. 4882176 - Method for molding confectionery products
9. 4669986 - Writing training device
10. 4126958 - Fumigator for mosquito coil