Average Co-Inventor Count = 2.00
ph-index = 2
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. Ykk Corporation (2 from 1,383 patents)
2. Yoshida Kogyo K.k. (2 from 1,145 patents)
3. Yoshiyuki Horita (0 patent)
4. Kiyoshi Nakayama (0 patent)
5. Yasuhiko Sugimoto (0 patent)
6. Yoshiharu Yamaguchi (0 patent)
7. Norio Kikukawa (0 patent)
8. Shigeru Funakawa (0 patent)
4 patents:
1. 10820667 - Fastener stringer provided with metal element row having plating film, fastener chain, and slide fastener
2. 6048401 - Method and apparatus for immersion-process
3. 5035029 - Slide fastener and fastener elements therefor
4. 4734298 - Method of providing marks on surface-type fasteners