Average Co-Inventor Count = 4.00
ph-index = 4
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 Ulsi Systems Co., Ltd. (5 from 336 patents)
2. Other (4 from 832,880 patents)
3. Renesas Electronics Corporation (3 from 7,529 patents)
4. Renesas Technology Corp. (3 from 3,781 patents)
10 patents:
1. 8674745 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
2. 8139332 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
3. 7944656 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
4. 7403361 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
5. 7091767 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
6. 6853217 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
7. 6677780 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
8. 6504400 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
9. 6392439 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
10. 6249145 - Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit