Yasunobu Shimizu

2 Patents

• US118680642024

  Image Forming Apparatus with a Toner Conveying Device Having a Reverse-flow Conveying Portion

  RICOH COMPANY, Ltd.

  0 cites
• US117034522023

  Method and Apparatus for Measuring Transmittance of Quartz Crucible

  SUMCO CORPORATION

  0 cites