Average Co-Inventor Count = 3.62
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. (19 from 42,485 patents)
2. International Business Machines Corporation (8 from 164,108 patents)
3. Sumitomo Electric Industries, Limited (8 from 10,239 patents)
4. Hitachi Software Engineering Company, Ltd. (4 from 228 patents)
5. Sumitomo Electric Device Innovations, Inc. (2 from 335 patents)
6. Other (1 from 832,680 patents)
7. Kabushiki Kaisha Toshiba (1 from 52,711 patents)
8. Toshiba Kikai Kabushiki Kaisha (1 from 746 patents)
9. Hitachi Microcomputer Engineering, Ltd. (1 from 149 patents)
10. Hitachi Plant Technologies, Ltd. (1 from 136 patents)
11. Hitachi Electronics Engineering Co., Ltd. (1 from 88 patents)
12. Hitachi Plant Engineering Construction Co., Ltd. (1 from 56 patents)
13. Hitachi Information Control Systems, Inc. (1 from 9 patents)
14. Hitachi Seibu Soft Ware Co., Ltd. (1 from 8 patents)
39 patents:
1. 11307358 - Method for manufacturing optical component and pressing jig
2. 11221449 - Optical connector, optical module and clip member
3. D931229 - Holder for optical connector
4. 10281653 - Optical receiver module and process to assemble optical receiver module
5. 10128974 - Optical receiver module and process to assemble optical receiver module
6. 9989755 - Method of producing optical module and optical module
7. 9063310 - Optical transceiver implementing with flexible printed circuit connecting optical subassembly to circuit board
8. 7431893 - Process and apparatus for continuous polycondensation
9. 6911971 - Computer and method providing for illumination of keyboard
10. 6775214 - Data recording irradiation power control method and disk drive
11. 6096838 - Method and apparatus for continuous polycondensation
12. 5828842 - Method of creating information for executing network management
13. 5798754 - Grip cap for computer control stick
14. 5729480 - Portable information processing apparatus
15. 5694123 - Keyboard with integrated pointing device and click buttons with lock