Average Co-Inventor Count = 4.06
ph-index = 13
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. Hitachi, Ltd. (38 from 42,517 patents)
2. Other (2 from 832,912 patents)
3. Swcc Showa Cable Systems Co., Ltd. (2 from 22 patents)
4. Hitachi Device Engineering Co., Ltd. (1 from 217 patents)
5. Hitachi Automotive Engineering Co., Ltd. (1 from 152 patents)
6. Swcc Showa Cable System Co., Ltd. (1 from 1 patent)
43 patents:
1. 11222745 - Coil and non-contact power supply device
2. 9954335 - Terminal connection method for litz wire
3. 9842681 - Litz wire coil
4. 7424801 - System for diagnosing deterioration of catalyst
5. 7114326 - System for diagnosing deterioration of catalyst
6. 7021044 - System for diagnosing deterioration of catalyst
7. 6992425 - Display apparatus with a multi-layer absorption, conduction and protection film
8. 6802030 - Data transfer method
9. 6359380 - Color cathode ray tube with panel glass having a different light absorption characteristic from that of at least one outer surface layer provided thereon
10. 6343466 - System for diagnosing deterioration of catalyst
11. 6305361 - Evaporative system and method of diagnosing same
12. 6105556 - Evaporative system and method of diagnosing same
13. 6092368 - Function diagnostic system for an exhaust gas purifying apparatus in an
14. 6085132 - Control method and apparatus for diagnosing vehicles
15. 5964811 - Control method and apparatus for diagnosing vehicles