Average Co-Inventor Count = 5.72
ph-index = 19
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. (49 from 42,496 patents)
2. Hitachi Vlsi Engineering Corp. (14 from 182 patents)
3. Renesas Technology Corp. (3 from 3,781 patents)
4. Hitachi Ulsi Systems Co., Ltd. (3 from 336 patents)
5. Hitachi High-tech Corporation (2 from 1,125 patents)
6. Hitachi Device Engineering Co., Ltd. (2 from 217 patents)
7. Other (1 from 832,843 patents)
8. Elpida Memory, Inc. (1 from 1,458 patents)
9. Hitachi Ulsi Engineering Corp. (1 from 87 patents)
10. Hitachi Vsli Engineering Corp. (1 from 4 patents)
11. Vlsi Engineering Corporation (1 from 4 patents)
12. Hitachi, Ltd., Hitachi Vlsi Engineering Corporation (1 from 1 patent)
57 patents:
1. 12422451 - Camera holding device for automatic analysis apparatus
2. 11664185 - Vibration damping system for charged particle beam apparatus
3. 7499340 - Semiconductor memory device and defect remedying method thereof
4. 7345929 - Semiconductor memory device and defect remedying method thereof
5. RE40132 - Large scale integrated circuit with sense amplifier circuits for low voltage operation
6. 7203101 - Semiconductor memory device and defect remedying method thereof
7. 7106643 - Method for manufacturing memory device provided with a defect recovery mechanism featuring a redundancy circuit
8. 7016236 - Semiconductor memory device and defect remedying method thereof
9. 6909647 - Semiconductor device having redundancy circuit
10. 6898130 - Semiconductor memory device and defect remedying method thereof
11. 6754114 - Semiconductor device having redundancy circuit
12. 6657901 - Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuit
13. 6577544 - Semiconductor device having redundancy circuit
14. 6515913 - Semiconductor memory device and defect remedying method thereof
15. 6337817 - Semiconductor device having redundancy circuit