Patents by Inventor Shohtaroh HOSHI

Shohtaroh HOSHI 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).

  • FILTER HOLDING DEVICE, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    Publication number: 20220395771
    Abstract: A filter holding device includes an opening portion and a filter. The opening portion communicates between an inside and an outside of the filter holding device. The filter is disposed in the opening portion and includes a first side and a second side. The first side is located adjacent to the inside of the filter holding device. The second side is located adjacent to the outside of the filter holding device. The filter has a larger weight density per unit volume at the second side than a weight density per unit volume at the first side and has a larger area of a surface intersecting a communication direction at the second side than an area of a surface intersecting the communication direction at the first side.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 15, 2022
    Inventors: Shohtaroh HOSHI, Kazuki YOGOSAWA, Tatsuya KUBO, Yuta YABUTA, Hotaru HASHIKAWA, Takuya SUGANUMA, Takuya SEKINE, Tatsumi YAMADA