Patents by Inventor Shinichi Hakamada

Shinichi Hakamada 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).

  • Publication number: 20210344324
    Abstract: Aspects of this disclosure relate to an acoustic wave device that includes a multi-layer interdigital transducer electrode. The acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode on the piezoelectric layer. The interdigital transducer electrode includes a first interdigital transducer electrode layer positioned between a second interdigital transducer electrode layer and the piezoelectric layer. The second interdigital transducer electrode layer can include aluminum and having a thickness of at least 200 nanometers. The acoustic wave device can include a temperature compensation layer arranged such that the interdigital transducer electrode is positioned between the piezoelectric layer and at least a portion of the temperature compensation layer. Related filters, modules, wireless communication devices, and methods are disclosed.
    Type: Application
    Filed: June 30, 2021
    Publication date: November 4, 2021
    Inventors: Tomoya Kodama, Shinichi Hakamada, Hironori Fukuhara, Yosuke Hamaoka
  • Patent number: 11082029
    Abstract: Aspects of this disclosure relate to an acoustic wave device that includes a multi-layer interdigital transducer electrode. The acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode on the piezoelectric layer. The interdigital transducer electrode includes a first interdigital transducer electrode layer positioned between a second interdigital transducer electrode layer and the piezoelectric layer. The second interdigital transducer electrode layer can include aluminum and having a thickness of at least 200 nanometers. The acoustic wave device can include a temperature compensation layer arranged such that the interdigital transducer electrode is positioned between the piezoelectric layer and at least a portion of the temperature compensation layer. Related filters, modules, wireless communication devices, and methods are disclosed.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: August 3, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Tomoya Kodama, Shinichi Hakamada, Hironori Fukuhara, Yosuke Hamaoka
  • Publication number: 20200106420
    Abstract: Aspects of this disclosure relate to an acoustic wave device that includes a multi-layer interdigital transducer electrode. The acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode on the piezoelectric layer. The interdigital transducer electrode includes a first interdigital transducer electrode layer positioned between a second interdigital transducer electrode layer and the piezoelectric layer. The second interdigital transducer electrode layer can include aluminum and having a thickness of at least 200 nanometers. The acoustic wave device can include a temperature compensation layer arranged such that the interdigital transducer electrode is positioned between the piezoelectric layer and at least a portion of the temperature compensation layer. Related filters, modules, wireless communication devices, and methods are disclosed.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Inventors: Tomoya Kodama, Shinichi Hakamada, Hironori Fukuhara, Yosuke Hamaoka
  • Patent number: 9090789
    Abstract: An aqueous ink comprising water, a water-soluble organic solvent and at least two pigments. The aqueous ink is used together with a reaction liquid containing a reactive component that reacts with the aqueous ink to cause aggregation or gelation of the aqueous ink. The at least two pigments have a difference in precipitation value to the reaction liquid of 0.2 or less.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Hakamada, Yoichi Takada, Yasuhiro Nito, Masashi Tsujimura, Toshifumi Akasaka, Shinya Mishina
  • Publication number: 20140307023
    Abstract: The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups/number of carbon atoms in its molecule of 0.50 or less.
    Type: Application
    Filed: April 21, 2014
    Publication date: October 16, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Moribe, Shinichi Hakamada, Takashi Imai, Masako Udagawa
  • Patent number: 8616695
    Abstract: Provided is an ink jet ink including a monoazo pigment and a resin, the ink being used for an ink jet recording system in which the ink is ejected from a recording head by an action of thermal energy. The monoazo pigment is a self-dispersible pigment having an anionic group bonded to a particle surface of the pigment directly or via another atomic group and has a surface charge amount of 5.9×10?2 mmol/g or more and 9.8×10?2 mmol/g or less. The resin has an acid value of 100 mg KOH/g or more and 160 mg KOH/g or less. The mass ratio of the content (mass %) of the resin to the content (mass %) of the monoazo pigment in the ink is 0.05 times or more and 0.25 times or less.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: December 31, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhito Mori, Shinichi Hakamada, Tomohiro Yamashita
  • Patent number: 8367750
    Abstract: The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups/number of carbon atoms in its molecule of 0.50 or less.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: February 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Moribe, Shinichi Hakamada, Takashi Imai, Masako Udagawa
  • Patent number: 8353573
    Abstract: To provide a waste ink absorbing tank, capable, even in the case of utilizing an ink of a high coagulating property, of causing a waste ink absorbent member to efficiently absorb such ink. A waste ink absorbent member has a hole portion corresponding to an introducing position of the waste ink, and the hole portion is opened on a lateral face of the absorbent member. The waste ink, introduced into the hole portion moves in one direction toward the waste ink absorbent member and absorbed therein.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Osumi, Sadayuki Sugama, Shinichi Hakamada, Junichi Sakai, Yasuhiro Nito, Katsuhiko Suzuki
  • Patent number: 8324293
    Abstract: An aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a poor medium for a polymer that is not adsorbed on the pigment (out of the polymer having hydroxyl groups), and wherein when the segment constituting the polymer that is not adsorbed on the pigment (out of the polymer having hydroxyl groups) is comprised of a segment A having hydroxyl groups and a segment B having no hydroxyl group, at least one of the poor medium is a good medium for either one of the segment A and the Segment B.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: December 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Imai, Shinichi Hakamada, Kenji Moribe, Masako Udagawa
  • Patent number: 8308198
    Abstract: The present invention relates to a water-based fluorescent ink for the purpose of measurement or judgment of the fluorescence emission in a visible light region by an excitation wavelength in a predetermined ultraviolet range, containing water, a coloring material dissolved or dispersed in water, and an organic solvent, having a plurality of fluorescent groups in the coloring material structure of the coloring material, and using a water-soluble coloring material having a sulfonic acid group as the water-soluble group in the state of a free acid, capable of improving the water resistance and the light resistance, dramatically increasing the content of the fluorescent coloring material in the ink, which has conventionally been included only by a small amount in the ink due to the concentration quenching problem, obtaining preferable fluorescence emission and water resistance of the recorded image, and providing preferable adhesion resistance to the recording medium of the coloring material and reliability.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: November 13, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masako Udagawa, Shoji Koike, Makoto Aoki, Akira Nagashima, Shinichi Hakamada
  • Publication number: 20120268532
    Abstract: Provided is an ink jet ink including a monoazo pigment and a resin, the ink being used for an ink jet recording system in which the ink is ejected from a recording head by an action of thermal energy. The monoazo pigment is a self-dispersible pigment having an anionic group bonded to a particle surface of the pigment directly or via another atomic group and has a surface charge amount of 5.9×10?2 mmol/g or more and 9.8×10?2 mmol/g or less. The resin has an acid value of 100 mg KOH/g or more and 160 mg KOH/g or less. The mass ratio of the content (mass %) of the resin to the content (mass %) of the monoazo pigment in the ink is 0.05 times or more and 0.25 times or less.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 25, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhito Mori, Shinichi Hakamada, Tomohiro Yamashita
  • Patent number: 8273168
    Abstract: An ink contains at least a pigment, wherein the pigment is a solid solution of C.I. Pigment Red 202 and C.I. Pigment Violet 19, and a primary particle diameter D (nm) of the pigment and a 50%-cumulative diameter D50 (nm) in particle diameter distribution of the pigment satisfy a relation of D×0.95?(=<)D50?(=<)130, and a 90%-cumulative diameter D90 (nm) in particle diameter distribution of the pigment and the 50%-cumulative diameter D50 (nm) satisfy a relation of 1.5?(=<)D90/D50?(=<)2.2.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: September 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kakikawa, Masako Udagawa, Shuichi Okazaki, Yuuhei Shimizu, Hideyuki Takai, Shinichi Hakamada, Kouhei Nakagawa, Hideki Takayama
  • Publication number: 20120218345
    Abstract: To provide a waste ink absorbing tank, capable, even in the case of utilizing an ink of a high coagulating property, of causing a waste ink absorbent member to efficiently absorb such ink. A waste ink absorbent member has a hole portion corresponding to an introducing position of the waste ink, and the hole portion is opened on a lateral face of the absorbent member. The waste ink, introduced into the hole portion moves in one direction toward the waste ink absorbent member and absorbed therein.
    Type: Application
    Filed: March 1, 2012
    Publication date: August 30, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Osumi, Sadayuki Sugama, Shinichi Hakamada, Junichi Sakai, Yasuhiro Nito, Katsuhiko Suzuki
  • Patent number: 8216355
    Abstract: An ink contains at least a pigment, wherein the pigment is C.I. Pigment Red 282, and a primary particle diameter D (nm) of the pigment and a 50%-cumulative diameter D50 (nm) in particle diameter distribution of the pigment satisfy a relation of D×0.95?D50?150, and a 90%-cumulative diameter D90 (nm) in particle diameter distribution of the pigment and the 50%-cumulative diameter D50 (nm) satisfy a relation of 1.5?D90/D50?2.5.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masako Udagawa, Shuichi Okazaki, Hiroshi Kakikawa, Yuuhei Shimizu, Shinichi Hakamada, Hideyuki Takai
  • Patent number: 8217097
    Abstract: The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masako Udagawa, Shinichi Hakamada, Takashi Imai, Kenji Moribe
  • Patent number: 8152273
    Abstract: To provide a waste ink absorbing tank, capable, even in the case of utilizing an ink of a high coagulating property, of causing a waste ink absorbent member to efficiently absorb such ink. A waste ink absorbent member has a hole portion corresponding to an introducing position of the waste ink, and the hole portion is opened on a lateral face of the absorbent member. The waste ink, introduced into the hole portion moves in one direction toward the waste ink absorbent member and absorbed therein.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Osumi, Sadayuki Sugama, Shinichi Hakamada, Junichi Sakai, Yasuhiro Nito, Katsuhiko Suzuki
  • Patent number: 8016406
    Abstract: An aqueous ink comprises water, a water-insoluble coloring material, and plurality of water-soluble organic solvents and the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material. The ratio of the content of the poor medium and the content of the good medium is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the plurality of water-soluble organic solvents is the poor medium. When the aqueous ink is in contact with a specific reaction liquid, the dissolution state or dispersed state of the water-insoluble coloring material in the ink is made unstable. As a result, an image which has a sufficiently large area factor even with a small amount of ink droplets and is excellent in image density, bleeding resistance, and fixability can be obtained.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: September 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Hakamada, Takashi Imai, Mikio Sanada, Yasuhiro Nito, Tetsu Iwata, Sadayuki Sugama
  • Patent number: 8013051
    Abstract: A liquid composition which can achieve superior scratch resistance of images at such a level that coloring materials are hardly scraped off even when images are scratched with finger nails under application of such strong pressure as to scratch a recording medium at its non-recorded areas. The liquid composition contains at least a modified siloxane compound having specific structure and a polymer whose acid value and hydrogen bond parameter (?h) are specified.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: September 6, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Takada, Masashi Tsujimura, Katsuhiro Shirota, Shinichi Hakamada, Maiko Yamada, Sayoko Harigaya
  • Publication number: 20110181655
    Abstract: The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink.
    Type: Application
    Filed: April 6, 2011
    Publication date: July 28, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masako Udagawa, Shinichi Hakamada, Takashi Imai, Kenji Moribe
  • Patent number: RE44863
    Abstract: An ink contains at least a pigment, wherein the pigment is a solid solution of C.I. Pigment Red 202 and C.I. Pigment Violet 19, and a primary particle diameter D (nm) of the pigment and a 50%-cumulative diameter D50 (nm) in particle diameter distribution of the pigment satisfy a relation of D×0.95?(=<)D50?(=<)130, and a 90%-cumulative diameter D90 (nm) in particle diameter distribution of the pigment and the 50%-cumulative diameter D50 (nm) satisfy a relation of 1.5?(=<)D90/D50?(=<)2.2.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kakikawa, Masako Udagawa, Shuichi Okazaki, Yuuhei Shimizu, Hideyuki Takai, Shinichi Hakamada, Kouhei Nakagawa, Hideki Takayama