Average Co-Inventor Count = 3.86
ph-index = 5
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. Sanyo Electric Co., Ltd. (10 from 8,776 patents)
2. Tonen Corporation (6 from 141 patents)
3. Tonen Chemical Corporation (6 from 47 patents)
4. Osaka Organic Chemical Industry Co., Ltd. (6 from 9 patents)
5. Miura Dolphins Co., Ltd. (6 from 6 patents)
6. Other (2 from 832,680 patents)
7. Ohtsuka; Masahisa (1 from 1 patent)
8. Ohtsuka, Masahisa, Ohizumimachi (1 from 1 patent)
9. Masahisa Ohtsuka (1 from 1 patent)
10 patents:
1. 5699675 - Heat exchanger and cooling apparatus mounted with the same
2. 5634352 - Refrigeration cycle using six-way change-over valve
3. 5632152 - Artificial snow in an aggregate form of snow granules
4. 5626030 - Refrigerant flow amount control valve and refrigerating apparatus
5. 5556671 - Artificial snow in an aggregate form of snow granules
6. 5436039 - Artificial snow in an aggregate form of snow granules
7. 5266367 - Artificial snow granule
8. 5261245 - Method for making ice slab and/or artificial snow
9. 5136849 - Snow composition and method for making artificial snow
10. 4876070 - Air blower apparatus