Average Co-Inventor Count = 1.77
ph-index = 14
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. Alps Electric Co., Ltd. (104 from 4,048 patents)
2. Nichias Corporation (6 from 254 patents)
3. Tdk Corporation (4 from 7,968 patents)
4. San-ei Kagaku Co., Ltd. (4 from 23 patents)
5. Alps Alpine Co., Ltd. (2 from 566 patents)
6. Alps Electronic Co., Ltd. (2 from 15 patents)
7. Zephyr Corporation (2 from 2 patents)
8. Alps Alpineco., Ltd. (1 from 13 patents)
9. Ichiyo-sha Co., Ltd. (1 from 1 patent)
126 patents:
1. 10947163 - Foam
2. 10848045 - Sound production device
3. 10735863 - Sound producing device
4. 10448169 - Sound producing device
5. 10222915 - Input device and method of manufacturing it
6. 10138775 - Holding material, method for producing same, and gas treatment device using same
7. 9796634 - Holding material for gas treatment device, gas treatment device, and production processes therefor
8. 9302947 - Inorganic fiber and process for manufacturing same
9. 9156730 - Inorganic fiber and method for manufacturing the same
10. 9156731 - Inorganic fibers
11. 8418557 - Physical quantity sensor
12. 8232477 - Curable resin composition, halogen-free resin substrate, and halogen-free build-up printed wiring board
13. 8207586 - Substrate bonded MEMS sensor
14. 8013459 - Wind power generator
15. 7800365 - Magnetic detection device and electrical product