Average Co-Inventor Count = 4.87
ph-index = 12
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. (28 from 42,485 patents)
2. Hitachi Ulsi Systems Co., Ltd. (7 from 336 patents)
3. Renesas Technology Corp. (6 from 3,781 patents)
4. Renesas Electronics Corporation (2 from 7,524 patents)
5. Other (1 from 832,680 patents)
6. Hitachi Displays, Ltd. (1 from 1,207 patents)
38 patents:
1. 7982314 - Semiconductor integrated circuit device
2. 7928952 - Image display device
3. 7808107 - Semiconductor integrated circuit device
4. 7547971 - Semiconductor integrated circuit device
5. 7423623 - Image display device
6. 7254068 - Semiconductor memory device
7. 7068551 - Semiconductor memory device
8. 6963136 - Semiconductor integrated circuit device
9. 6856559 - Semiconductor memory device
10. 6770941 - Semiconductor device and method of manufacturing a semiconductor device
11. 6625070 - Semiconductor memory device
12. 6538933 - High speed semiconductor memory device with short word line switching time
13. 6366507 - High speed semiconductor memory device with short word line switching time
14. 6329973 - Image display device
15. 6032229 - Semiconductor memory device and information processor using the same