Patents by Inventor Tomofumi Hamada

Tomofumi Hamada 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).

  • Toner cartridge having feeding member and pump for discharging pump
    Patent number: 11982952
    Abstract: A toner cartridge includes a casing, a feeding member, and a pump. The casing includes a toner accommodation chamber accommodating toner, a toner discharging chamber having a discharge opening for discharging the toner, and a communication passage for fluid communication between the toner accommodation chamber and the toner discharging chamber such that the toner can move from the toner accommodation chamber to the toner discharging chamber. A part of the feeding member is positioned inside the communication passage.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: May 14, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Asanuma, Takatoshi Hamada, Masato Tanabe, Tomofumi Kawamura, Yusuke Atsu
  • ORAL CANCER DETECTION KIT, USE OF REAGENT, REAGENT, ORAL CANCER DETECTION DEVICE, INFORMATION ACQUISITION METHOD, AND PROGRAM
    Publication number: 20240150842
    Abstract: An oral cancer detection kit includes a reagent that detects methylation in promoter regions of a plurality of types of genes in DNA contained in a sample collected from the oral cavity of a subject. The plurality of types of genes includes KLLN, CASP8, CHFR, and GSTP1. Whether the subject has oral cancer is determined based on information on methylation in the promoter regions provided by the reagent.
    Type: Application
    Filed: February 17, 2022
    Publication date: May 9, 2024
    Applicant: Tohoku University
    Inventors: Tomofumi HAMADA, Kazuki MORI, Tsuyoshi SUGIURA
  • METHOD FOR DETECTING ORAL PRECANCEROUS LESION
    Publication number: 20190024181
    Abstract: A noninvasive method for early detection of a precancerous lesion that may be developed into oral cancer by large-scale screening is provided. The method is a method for obtaining data for diagnosis of an oral precancerous lesion in a subject by detecting methylation of DNA in gargled fluid collected from the subject, wherein the DNA is DNA in a promoter region of at least one gene selected from the following group of genes: RASSF1, DAPK1, CD44, BRCA2, FHIT, CDKN2A, HIC1, CASP8, RAR?, CDKN2B, CHFR, ATM, CDKN1B, BRCA1, and CADM1.
    Type: Application
    Filed: September 1, 2016
    Publication date: January 24, 2019
    Applicant: KAGOSHIMA UNIVERSITY
    Inventor: Tomofumi Hamada