YO

Yuichi Ohga

Sumitomo Electric Industries: 38 patents #306 of 21,551Top 2%
FC Fu-Se Vacuum Forming Co.: 1 patents #2 of 3Top 70%
📍 Moriya, JP: #19 of 174 inventorsTop 15%
Overall (All Time): #83,112 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
5693115 Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient Masumi Ito, Toshio Danzuka, Sumio Hoshino, Ichiro Tsuchiya 1997-12-02
5685889 Method for flame abrasion of glass preform Toshio Danzuka 1997-11-11
5674305 Method for flame abrasion of glass preform Susumu Uchida 1997-10-07
5674306 Method and apparatus for drawing glass preform for optical fiber Sumio Hoshino, Toshio Danzuka, Katsuzo Mukai 1997-10-07
5513983 Apparatus for vitrifying soot preform for optical fiber Masumi Ito, Ichiro Tuchiya, Toshio Danzuka, Sumio Hoshino 1996-05-07
5474589 UV light-permeable glass and article comprising the same Shinji Ishikawa, Tatsuhiko Saito, Hiroshi Yokota, Michihisa Kyoto 1995-12-12
5446820 Mode field diameter conversion optical fiber Shinji Ishikawa, Hiroo Kanamori, Koji Nakazato, Masayuki Nishimura 1995-08-29
5417399 Apparatus for supporting article in heating furnace Tatsuo Saito, Kohei Kobayashi, Kouji TAKATA, Hikaru Sato 1995-05-23
5338327 Method of flame abrasion of glass preform Toshio Danzuka, Masahide Saito, Kouji Amemiya, Hiroshi Yokota 1994-08-16
5320658 Process of drawing optical fiber Shinji Ishikawa, Hiroo Kanamori, Ichiro Yoshimura, Horoshi Yokota 1994-06-14
5306322 Process for thermal treatment of glass fiber preform Shinji Ishikawa, Ichiro Tsuchiya, Hiroo Kanamori, Hiroshi Yokota, Michihisa Kyoto 1994-04-26
5259856 Method of producing glass preform in furnace for heating glass Shinji Ishikawa, Hiroo Kanamori, Ichiro Tsuchiya, Hiroshi Yokota 1993-11-09
5238479 Method for producing porous glass preform for optical fiber Toshio Danzuka, Hiroo Kanamori, Hiroshi Yokota 1993-08-24
5106401 Process for thermal treatment of glass fiber preform Shinji Ishikawa, Ichiro Tsuchiya, Hiroo Kanamori, Hiroshi Yokota, Michihisa Kyoto 1992-04-21