Patents by Inventor Hiroyuki Tokuda

Hiroyuki Tokuda 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).

  • Color filter and method for producing the same
    Publication number: 20020025481
    Abstract: An object is to provide a color filter which is capable of forming a pattern using an alkaline developer and has excellent heat resistance, solvent resistance and chemical resistance, and is also suitable for practical use. The color filter comprises a transparent substrate and a pixel formed on the transparent substrate, wherein the pixel is made of a coating film of a curable colored composition containing (a) a coloring material, (b) a compound having a photopolymerizable functional group and (c) an amino resin having a carboxyl group and/or a phenolic hydroxyl group and the coating layer is photocured, followed by heat curing.
    Type: Application
    Filed: July 11, 2001
    Publication date: February 28, 2002
    Applicant: Dainippon Ink and Chemicals, Inc.
    Inventors: Junichiro Koike, Hisatomo Yonehara, Hiroyuki Tokuda, Yasunobu Hirota
  • Printer
    Patent number: D451540
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: December 4, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Aage Ryoichi Granaas
  • Printer for electronic computer
    Patent number: D373596
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: September 10, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sekine, Hiroyuki Tokuda
  • Ink tank for printer
    Patent number: D374033
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: September 24, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D374890
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: October 22, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D375120
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: October 29, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuo Kotaki, Yuji Hamasaki, Hideo Saikawa, Hiroyuki Tokuda, Shosaku Kawashima, Masanori Takenouchi, Osamu Sato, Hisashi Yamamoto, Jun Hinami, Toshiaki Sasaki
  • Ink tank for printer
    Patent number: D375521
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: November 12, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D375522
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: November 12, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D375755
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: November 19, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D376172
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 3, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Takenouchi, Hiroyuki Tokuda
  • Ink tank for printer
    Patent number: D376173
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: December 3, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D376174
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: December 3, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D377371
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: January 14, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D378758
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: April 8, 1997
    Assignee: Canon Kabushi Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D381681
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: July 29, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Takenouchi, Hiroyuki Tokuda
  • Laser beam printer
    Patent number: D382582
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: August 19, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Igarashi, Naoki Tashiro, Akira Katsuno, Hiroyuki Tokuda
  • Printer for electronic computer
    Patent number: D390597
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: February 10, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Igarashi, Hiroyuki Tokuda
  • Ink tank for printer
    Patent number: D395445
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: June 23, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D404068
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: January 12, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sekine, Hiroyuki Tokuda, Hiroyuki Ishinaga, Yuji Kamiyama
  • Ink tank for printer
    Patent number: D430200
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 29, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Taneya, Hiroyuki Ishinaga, Hiroyuki Tokuda, Tetsuya Sekine