Patents by Inventor Yasuo Ujii

Yasuo Ujii has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4690535
    Abstract: An automatic film processor arrangement is provided, which comprises a plurality of processing tanks each being charged with a processing liquid, and plural sets of a pair of rollers mounted within the respective processing tanks to continuously pass a photosensitive film through the processing liquids. Shafts projecting from both ends of the rollers are provided with sleeve-like bearings. Each bearing is formed on the inner face with a projection in the circumferential direction, is formed with a split groove extending axially from a mouth thereof which is open on the roller side, and includes opposing flat portions on the outer face. The bearing is locked in place by engaging its projection within the groove formed in the shaft of each roller. Each pair of roller are held by supporting the adjacent bearings by the lock plate on the same side.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: September 1, 1987
    Assignee: Sun Seiki Co., Ltd.
    Inventors: Takao Kubota, Yasuo Ujii
  • Patent number: 4669847
    Abstract: An automatic photographic processor having a filter provided in a circulating flow path of the processing liquid used in a developing tank. A control device calculates the total quantity of light-sensitive material processed by the liquid since the filter was last changed. The control device generates a warning signal when the total quantity reaches a predetermined value. An accoustical or optical warning device responsive to the warning signal indicates that the filter should be changed. A flowrate meter or pressure detection system in the circulating flow path checks the effectiveness of the filter and can also generate a warning signal for the warning device to indicate that the filter should be changed.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: June 2, 1987
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shinichi Taniguchi, Akiru Akashi, Yasuo Ujii