YK

Yoshinari Kashiwagi

Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
Overall (All Time): #666,074 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6009728 Die for press-molding optical elements Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura, Satoru Morimoto 2000-01-04
6003336 Method of manufacturing a die for press-molding optical elements Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura, Satoru Morimoto 1999-12-21
5904747 Method of molding optical articles Hidenao Kataoka, Makoto Umetani, Shoji Nakamura 1999-05-18
5759221 Method of press molding glass optical elements Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura, Satoru Morimoto 1998-06-02
5700307 Die for press-molding optical elements Makoto Umetani, Hidenao Kataoka, Kenji Inoue, Shoji Nakamura, Satoru Morimoto 1997-12-23
5538528 Glass optical element press-molding die having a tantalum containing alloy surface layer Makoto Umetani, Masaki Aoki 1996-07-23
5425118 Optical component mounting substrate and method of producing the same Miho Sugihara, Masaki Aoki, Makoto Umetani, Kenji Inoue 1995-06-13
5405652 Method of manufacturing a die for use in molding glass optical elements having a fine pattern of concavities and convexities Makoto Umetani, Masaki Aoki 1995-04-11