Average Co-Inventor Count = 1.06
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. Skylite Industry Co., Ltd. (20 from 20 patents)
2. Sekisui Kaseihin Kogyo Kabushiki Kaisha (2 from 86 patents)
3. Skylight Industry Co. Ltd. (1 from 2 patents)
4. Keiichi Ohashi (1 from 1 patent)
23 patents:
1. 5922233 - Heater and manufacturing method thereof
2. 5414241 - Heater, a method of manufacturing the same, and an anti-condensation
3. D340529 - Electric massager
4. D340116 - Electric massager
5. D329499 - Electric foot massager
6. 5107822 - Apparatus for giving motions to the abdomen
7. D324699 - Electric eraser
8. D321681 - Battery charger for electric eraser
9. D308254 - Combined flashlight and fluorescent lantern
10. D308256 - Portable light
11. D300666 - Portable light
12. D300667 - Portable light
13. 4797517 - Switch device of portable flashlight
14. D299274 - Flashlight
15. 4774644 - Structure for mounting electric bulb in portable flashlight