HK

Hiroyuki Kihara

CC Citizen Watch Co.: 1 patents #6 of 59Top 15%
SK Seiko Seiki Kabushiki Kaisha: 1 patents #4 of 14Top 30%
Overall (1989): #25,897 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4879669 Sensor signal processor Kazuya Mitaki 1989-11-07
4845895 Internal grinding machine Isaoi Ogawa 1989-07-11