Yuji Shibutani

3 Patents

• US120708352024

  Placing Member

  SEIKOH GIKEN Co., Ltd.

  0 cites
• US117892132023

  End Face Polishing Device for Optical Fiber Ferrule

  SEIKOH GIKEN Co., Ltd.

  0 cites
• US115717842023

  Optical Fiber Ferrule Polishing Holder

  SEIKOH GIKEN Co., Ltd.

  0 cites