Average Co-Inventor Count = 4.93
ph-index = 11
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. Nippon Tungsten Co., Ltd. (17 from 57 patents)
2. Sumitomo Special Metals Co., Ltd. (8 from 240 patents)
3. Kyushu Electric Power Co., Inc. (1 from 32 patents)
4. Sumitomo Special Metal Co. Ltd. (1 from 26 patents)
17 patents:
1. 5592647 - PTC panel heater with small rush current characteristic and highly heat
2. 5432016 - Magnetic head slider material
3. 5302560 - Process for the production of magnetic head sliders
4. 5093290 - Silicon nitride type sintered bodies and method for producing the same
5. 4902651 - Material for magnetic head substrate member
6. 4874725 - High-density sintered article of silicon carbid
7. 4859638 - Magnetic head sliders, materials therefor, and the process for the
8. 4814915 - Magnetic head slider and material therefor
9. 4796127 - Recording head slider
10. 4598052 - Alumina base substrate of recording head and process for the production
11. 4582812 - Aluminum oxide substrate material for magnetic head and method for
12. 4430440 - Magnetic head slider material
13. 4430279 - Process for producing zirconia yttria grinding media used for grinding
14. 4356272 - Sintered bodies Al.sub.2 O.sub.3 -TiC-TiO.sub.2 continuing yttrium (y)
15. 4249914 - Cutting tool material and method for producing cutting tool material