Patents by Inventor Takaaki Tamada

Takaaki Tamada 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).

  • Anti-reflection coating and optical member comprising same
    Patent number: 10782452
    Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 22, 2020
    Assignee: RICOH IMAGING COMPANY, LTD.
    Inventors: Takaaki Tamada, Naohito Sasaki, Hiroyuki Nakayama
  • Bag sealing tape, and banding device and banding method using the bag sealing tape
    Patent number: 9957073
    Abstract: A bag sealing tape which can be repeatedly used without damaging a banded object such as a bag or the like when the object is opened, and which does not have to be separated for disposal; and a banding device and a banding method using the bag sealing tape. The bag sealing tape includes adhesion zones and non-adhesion zones, and the adhesion zones are disposed on the surface of a base film in a stepping stone manner in a length direction of the base film.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: May 1, 2018
    Assignee: KYOWA LIMITED
    Inventors: Hidekazu Oue, Yusuke Akiba, Tatsuya Sugiyama, Atsushi Kanda, Takaaki Tamada, Tadashi Matsumoto, Masaharu Taniguchi, Takeshi Fujii
  • Bag Sealing Tape, and Banding Device and Banding Method Using the Bag Sealing Tape
    Publication number: 20170152068
    Abstract: A bag sealing tape which can be repeatedly used without damaging a banded object such as a bag or the like when the object is opened, and which does not have to be separated for disposal; and a banding device and a banding method using the bag sealing tape. The bag sealing tape includes adhesion zones and non-adhesion zones, and the adhesion zones are disposed on the surface of a base film in a stepping stone manner in a length direction of the base film.
    Type: Application
    Filed: February 7, 2017
    Publication date: June 1, 2017
    Inventors: Hidekazu Oue, Yusuke Akiba, Tatsuya Sugiyama, Atsushi Kanda, Takaaki Tamada, Tadashi Matsumoto, Masaharu Taniguchi, Takeshi Fujii
  • ANTI-REFLECTION COATING AND OPTICAL MEMBER COMPRISING SAME
    Publication number: 20170131436
    Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Applicant: RICOH IMAGING COMPANY, LTD.
    Inventors: Takaaki TAMADA, Naohito SASAKI, Hiroyuki NAKAYAMA
  • Anti-reflection coating and optical member comprising same
    Patent number: 9581733
    Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 28, 2017
    Assignee: RICOH IMAGING COMPANY, LTD.
    Inventors: Takaaki Tamada, Naohito Sasaki, Hiroyuki Nakayama
  • Anti-reflection Coating and Optical Member Comprising Same
    Publication number: 20150055222
    Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 26, 2015
    Inventors: Takaaki TAMADA, Naohito SASAKI, Hiroyuki NAKAYAMA
  • Bag Sealing Tape, and Banding Device and Banding Method Using the Bag Sealing Tape
    Publication number: 20120079793
    Abstract: An objective of the present invention is to provide a bag sealing tape which can be repeatedly used without damaging a banded object such as a bag or the like when the object is opened, and which does not have to be separated for disposal; and a banding device and a banding method using the bag sealing tape. The bag sealing tape of the present invention includes adhesion zones and non-adhesion zones, and the adhesion zones are disposed on the surface of a base film in a stepping stone manner in a length direction of the base film.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 5, 2012
    Applicant: KYOWA LIMITED
    Inventors: Hidekazu Oue, Yusuke Akiba, Tatsuya Sugiyama, Atsushi Kanda, Takaaki Tamada, Tadashi Matsumoto, Masaharu Taniguchi, Takeshi Fujii