Patents by Inventor Kenichi Kamada

Kenichi Kamada 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: 20200292785
    Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number in well balance. An imaging lens comprises in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens having a concave surface facing the object side near an optical axis, a fifth lens, and a sixth lens having the concave surface facing the image side near the optical axis and negative refractive power, wherein said second lens has a convex surface facing the object side near the optical axis, composite refractive power of said second lens, said third lens and said fourth lens is negative, and below conditional expressions (1) and (2) are satisfied: 0.85<vd1/(vd2+vd3)<1.95??(1) 0.15<vd5/vd6<0.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Yukio SEKINE, Kenichi KAMADA, Koji NITTA
  • Publication number: 20200292786
    Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number in well balance. An imaging lens comprises in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens having a concave surface facing the object side near an optical axis, a fifth lens, and a sixth lens having the concave surface facing the image side near the optical axis and negative refractive power, wherein said second lens has a convex surface facing the object side near the optical axis, composite refractive power of said second lens, said third lens and said fourth lens is negative, and below conditional expressions (1) and (2) are satisfied: 0.85<vd1/(vd2+vd3)<1.95 ??(1) 0.15<vd5/vd6<0.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Yukio Sekine, Kenichi Kamada, Koji Nitta
  • Publication number: 20200181457
    Abstract: Provided is an adhesive member including: a base material having an uneven shape on at least one surface; and a surface layer covering at least a portion of the surface having the uneven shape on the base material.
    Type: Application
    Filed: July 10, 2018
    Publication date: June 11, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Jun KAMADA, Tomoya MATAYOSHI, Michio ERIGUCHI, Kaichiro HARUTA, Kenichi FUJII, Takashi UNEZAKI, Kazuo KOHMURA
  • Patent number: 10678021
    Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number in well balance. An imaging lens comprises in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens having a concave surface facing the object side near an optical axis, a fifth lens, and a sixth lens having the concave surface facing the image side near the optical axis and negative refractive power, wherein said second lens has a convex surface facing the object side near the optical axis, composite refractive power of said second lens, said third lens and said fourth lens is negative, and below conditional expressions (1) and (2) are satisfied: 0.85<vd1/(vd2+vd3)<1.95??(1) 0.15<vd5/vd6<0.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 9, 2020
    Assignee: KANTATSU CO., LTD.
    Inventors: Yukio Sekine, Kenichi Kamada, Koji Nitta
  • Publication number: 20200150396
    Abstract: There is provided an imaging lens with high-resolution which realizes the low-profileness, wide field of view and low F-value well balance. An imaging lens comprising in order from an object side to an image side, a first lens having positive refractive power, a second lens having negative refractive power, a third lens being a double-sided aspheric lens, a fourth lens having a meniscus shape with a concave surface facing the object side near an optical axis, a fifth lens being a double-sided aspheric lens, and a sixth lens having the concave surface facing the image side near the optical axis, wherein the image-side surface of said sixth lens is an aspheric surface which changes to the convex surface at a peripheral portion, and a total track length is 6.0 mm or less and below conditional expressions (2) and (3) are satisfied: 20<?d3<32??(2) 20<?d5<32??(3) where ?d3: abbe number at d-ray of the third lens ?d5: abbe number at d-ray of the fifth lens.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Hisao FUKAYA, Kenichi KAMADA, Shingo YUZA
  • Publication number: 20200150397
    Abstract: There is provided an imaging lens with high-resolution which realizes the low-profileness, wide field of view and low F-value well balance. An imaging lens comprising in order from an object side to an image side, a first lens having positive refractive power, a second lens having negative refractive power, a third lens being a double-sided aspheric lens, a fourth lens having a meniscus shape with a concave surface facing the object side near an optical axis, a fifth lens being a double-sided aspheric lens, and a sixth lens having the concave surface facing the image side near the optical axis, wherein the image-side surface of said sixth lens is an aspheric surface which changes to the convex surface at a peripheral portion, and a total track length is 6.0 mm or less and below conditional expressions (2) and (3) are satisfied: 20<vd3<32??(2) 20<vd5<32??(3) where vd3: abbe number at d-ray of the third lens vd5: abbe number at d-ray of the fifth lens.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Hisao FUKAYA, Kenichi KAMADA, Shingo YUZA
  • Patent number: 10534159
    Abstract: An imaging lens including order from an object side to an image side, a first lens having positive refractive power, a second lens having negative refractive power, a third lens being a double-sided aspheric lens, a fourth lens having a meniscus shape with a concave surface facing the object side near an optical axis, a fifth lens being a double-sided aspheric lens, and a sixth lens having the concave surface facing the image side near the optical axis, wherein the image-side surface of said sixth lens is an aspheric surface which changes to the convex surface at a peripheral portion, and a total track length is 6.0 mm or less and below conditional expressions (2) and (3) are satisfied: 20<?d 3<32??(2) 20<?d 5<32??(3) where ?d3: abbe number at d-ray of the third lens ?d5: abbe number at d-ray of the fifth lens.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: January 14, 2020
    Assignee: KANTATSU CO., LTD.
    Inventors: Hisao Fukaya, Kenichi Kamada, Shingo Yuza
  • Publication number: 20190315910
    Abstract: The blocked isocyanate is a blocked isocyanate containing a latent isocyanate group, which is an isocyanate group blocked with a blocking agent, wherein the blocked isocyanate includes a first latent isocyanate group that is an isocyanate group blocked with a first blocking agent and a second latent isocyanate group that is an isocyanate group blocked with a second blocking agent; and the first blocking agent is represented by general formula (1) below, and has a higher catalysis activity that activates the isocyanate group than that of the second blocking agent. (where R1 to R3 represent a hydrocarbon group having 1 to 12 carbon atoms or a hydrogen atom, and at least one of R1 to R3 represents a hydrogen atom, and R1 and R3 may be bonded to each other to form a heterocycle.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 17, 2019
    Inventors: Kazuyuki FUKUDA, Jun KAMADA, Takashi UCHIDA, Masakazu MASUI, Shinji TACHIBANA, Hirokazu MIZUMA, Kenichi FUJII
  • Publication number: 20190265438
    Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number in well balance. An imaging lens comprises in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens having a concave surface facing the object side near an optical axis, a fifth lens, and a sixth lens having the concave surface facing the image side near the optical axis and negative refractive power, wherein said second lens has a convex surface facing the object side near the optical axis, composite refractive power of said second lens, said third lens and said fourth lens is negative, and below conditional expressions (1) and (2) are satisfied: 0.85<vd1/(vd2+vd3)<1.95??(1) 0.15<vd5/vd6<0.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 29, 2019
    Inventors: Yukio SEKINE, Kenichi KAMADA, Koji NITTA
  • Patent number: 10385157
    Abstract: The blocked isocyanate is a blocked isocyanate containing a latent isocyanate group, which is an isocyanate group blocked with a blocking agent, wherein the blocked isocyanate includes a first latent isocyanate group that is an isocyanate group blocked with a first blocking agent and a second latent isocyanate group that is an isocyanate group blocked with a second blocking agent; and the first blocking agent is represented by general formula (1) below, and has a higher catalysis activity that activates the isocyanate group than that of the second blocking agent. (where R1 to R3 represent a hydrocarbon group having 1 to 12 carbon atoms or a hydrogen atom, and at least one of R1 to R3 represents a hydrogen atom, and R1 and R3 may be bonded to each other to form a heterocycle.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 20, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kazuyuki Fukuda, Jun Kamada, Takashi Uchida, Masakazu Masui, Shinji Tachibana, Hirokazu Mizuma, Kenichi Fujii
  • Patent number: 10363397
    Abstract: A catheter of the invention includes an elongated flexible tubular main body; a plurality of manipulation wires inserted through the tubular main body and having tips connected to a distal part of the tubular main body; a manipulation-part main body provided at a base end of the tubular main body; and a bending manipulation part. The bending manipulation part has an engagement part engaging with base ends of the manipulation wires, and individually applies pulling force to the plurality of manipulation wires through pulling operations so as to bend the distal part of the tubular main body. The bending manipulation part is provided so as to be movable with respect to the manipulation-part main body. The path lengths of the plurality of manipulation wires from the tips thereof to the engagement part are simultaneously increased or decreased when the bending manipulation part and the manipulation-part main body move relative to each other.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 30, 2019
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenichi Kanemasa, Shinetsu Harata, Yoshihiro Abe, Hayao Tanaka, Masao Ikeda, Keiji Kamada
  • Publication number: 20190133987
    Abstract: A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.
    Type: Application
    Filed: December 31, 2018
    Publication date: May 9, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naosuke KUNIMOTO, Kenichi SUZUKI, Kouya KOJIMA, Akira HASEGAWA, Yasufumi TSUCHIYA, Jun KAMADA, Satoshi YAMASAKI, Goro KUWAMURA, Daisuke HASEGAWA
  • Patent number: 10209485
    Abstract: There is provided an imaging lens which is low-profile, has a small f-value, and obtains wide field of view which aberrations are properly corrected, in order from an object side to an image side, comprising a first lens having positive refractive power and a convex surface on an object side near an optical axis, a second lens having negative refractive power and a concave surface on the object side near the optical axis, a third lens having positive refractive power and a convex surface on the image side as a double-sided aspheric lens and a fourth lens having negative refractive power and a concave surface on an image side near the optical axis as a double-sided aspheric lens, wherein a conditional expression (1) below is satisfied: 8.5<ih/f<1.0??(1) where f denotes the focal length of the overall optical system, and ih denotes maximum image height.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 19, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Shingo Yuza, Kenichi Kamada
  • Patent number: 9361788
    Abstract: A receiver of a remote control device includes a receiver configured to receive by wireless communication, a packet including a count value of edges of pulse signals, which are output from an encoder, per a predetermined period and to obtain the count value from the received packet, a register configured to retain the count value based on a write signal input from the receiver, and a pulse regenerating circuit including a counter in which the count value of the register is set based on the write signal input from the receiver, and configured to regenerate the pulse signals at an edge period that corresponds to the count value set in the counter in the predetermined period that corresponds to the write signal.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: June 7, 2016
    Assignee: MURATA MACHINERY, LTD.
    Inventor: Kenichi Kamada
  • Publication number: 20150029006
    Abstract: A receiver of a remote control device includes a receiver configured to receive by wireless communication, a packet including a count value of edges of pulse signals, which are output from an encoder, per a predetermined period and to obtain the count value from the received packet, a register configured to retain the count value based on a write signal input from the receiver, and a pulse regenerating circuit including a counter in which the count value of the register is set based on the write signal input from the receiver, and configured to regenerate the pulse signals at an edge period that corresponds to the count value set in the counter in the predetermined period that corresponds to the write signal.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventor: Kenichi KAMADA
  • Patent number: 8767298
    Abstract: An imaging lens with large aperture ratio, high-performance and low-cost is provided, which is applied to an imaging element of a small-size and high resolution, in which aberration is corrected satisfactorily and sufficient diffraction resolution is achieved. An imaging lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in sequence from an object side, wherein both surfaces of each lens are formed from aspheric surface, a diffraction optics surface exerting chromatic dispersion function is arranged on a surface on an image side of the second lens, each lens is configured from plastic material, and an aperture ratio is equal to or smaller than F/2.4.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 1, 2014
    Assignee: Kantatsu Co., Ltd.
    Inventors: Hisanori Suzuki, Shingo Watanabe, Kenichi Kamada, Kazuo Matsuoka
  • Patent number: 8378906
    Abstract: An electrical connection structure including: a first terminal attached to an edge portion of a circuit board, and composed of a first nipping portion, a connecting portion, a second nipping portion and a leaf spring portion each formed integrally in order as a single member, wherein the connecting portion exists along a side face of the edge portion, the first and second nipping portion and the connecting portion hold the edge portion therebetween and the leaf spring portion extends from an opposite side to the side of the connecting portion of the second nipping portion so that an interior angle formed by the second nipping portion and the leaf spring portion to be an acute; and a second terminal to be electrically connected to the leaf spring portion, wherein the second terminal is pressed to the leaf spring portion into a direction of widening the interior angle.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 19, 2013
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Kyuichi Sato, Hiroshi Suzuki, Kenichi Kamada, Takao Kato
  • Publication number: 20120162769
    Abstract: An imaging lens with large aperture ratio, high-performance and low-cost is provided, which is applied to an imaging element of a small-size and high resolution, in which aberration is corrected satisfactorily and sufficient diffraction resolution is achieved. An imaging lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in sequence from an object side, wherein both surfaces of each lens are formed from aspheric surface, a diffraction optics surface exerting chromatic dispersion function is arranged on a surface on an image side of the second lens, each lens is configured from plastic material, and an aperture ratio is equal to or smaller than F/2.4.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 28, 2012
    Applicant: KANTATSU CO., LTD.
    Inventors: Hisanori Suzuki, Shingo Watanabe, Kenichi Kamada, Kazuo Matsuoka
  • Patent number: 8094085
    Abstract: Disclosed is a cabinet of an electrical apparatus including: a base; a cover to cover over the base; a gasket placed on a top face of the base and nipped between a bottom edge section of the cover and the base; a fastening section to penetrate through the base from a bottom face to the top face of the base to connect to an inner face of the cover and to tighten so that the base is pulled to a cover side; a seal integrally formed with the gasket to surround on the top face of the base a through hole which the fastening section penetrates; and a hood provided on an inner face of the cover so as to surround a connecting portion of the fastening section and the cover, and the hood being pressed against the seal.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: January 10, 2012
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Kyuichi Sato, Hiroshi Suzuki, Kenichi Kamada, Takao Kato
  • Patent number: 8072385
    Abstract: Disclosed is a circuit substrate supporting structure including: a base; a cover to cover over the base; a circuit substrate accommodated in the cover in a state standing on the base; a projecting section provided on the circuit substrate in a state projecting from a bottom edge section of the circuit substrate and placed on the base; an elastic piece placed on the projecting section; and a pressurizing section convexly provided on an inner wall of the cover above the projecting section to be pressed against the projecting section from above the elastic piece.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: December 6, 2011
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Kyuichi Sato, Hiroshi Suzuki, Kenichi Kamada, Takao Kato