Average Co-Inventor Count = 1.87
ph-index = 11
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. Canon Kabushiki Kaisha (28 from 90,809 patents)
2. Asahi Kogaku Kogyo Kabushiki Kaisha (25 from 3,132 patents)
3. Pentax Corporation (14 from 1,056 patents)
4. Agc Inc. (7 from 1,030 patents)
5. Sony Corporation (5 from 58,132 patents)
6. Ebara Corporation (5 from 2,514 patents)
7. Hoya Corporation (3 from 2,532 patents)
8. Kowa Company Limited (3 from 591 patents)
9. Pentax Ricoh Imaging Company, Ltd. (3 from 123 patents)
10. Ricoh Imaging Company, Ltd. (1 from 94 patents)
11. Asahi Kogaku Kabushiki Kaisha (1 from 38 patents)
12. Nihon Inter Electronics Corporation (1 from 3 patents)
96 patents:
1. 12378147 - Method of producing melt, method of producing glass article, melting apparatus, and equipment for producing glass article
2. 12356511 - Heater for melting glass
3. 12227443 - Heater, manufacturing apparatus for manufacturing glass article, and manufacturing method for manufacturing glass article
4. 11718553 - Alkali-free glass substrate
5. 11584680 - Alkali-free glass substrate
6. 10974986 - Alkali-free glass substrate
7. 10246361 - Method for manufacturing molten glass, method for manufacturing glass product, and device for manufacturing molten glass
8. 9857829 - Information processing apparatus
9. 9696530 - Zoom lens system
10. 9595751 - Electronic device
11. 9436216 - Information processing apparatus
12. 9297385 - Vortex prevention device and double suction vertical pump having such vortex prevention device
13. 8659841 - Superwide-angle lens system
14. 8605365 - Zoom lens system
15. 8551985 - Carbinol derivatives having heterocyclic linker