Patents by Inventor Kiyoshi Iwamoto

Kiyoshi Iwamoto 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).

  • Patent number: 11867407
    Abstract: A range hood for collecting oil scattered from a rotating disk filter, capable of improving the cleaning workability is provided. The range hood includes a fan configured to generate an air flow, a disk filter provided on a flow path of the air flow and having a slit, a motor configured to rotate the disk filter, a rectifying plate provided upstream of the disk filter on the flow path of the air flow, and a disk cover configured to surround an outer periphery portion of the disc filter and having an outlet portion that allows oil from the disk filter to flow out to a predetermined portion of the rectifying plate.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kiyoshi Iwamoto, Kazutoshi Takenoshita, Kenichi Murata, Yurika Kida
  • Patent number: 11654711
    Abstract: A writing tool includes a refill having an ink reservoir tube formed to be a straight cylinder whose wall thickness is less than 0.56 mm; and a writing tip or a relay member holding the writing tip attached to a first end of the ink reservoir tube, wherein the refill is detachably attached to a barrel, wherein in the refill, amounting strength between the writing tip or the relay member holding the writing tip and the ink reservoir tube is set higher than a mounting strength between the barrel and a connecting portion of the ink reservoir tube. There is provided a writing tool that can prevent the occurrence of a problem such as leakage of ink at a time of replacement of refills and perform replacement of refills smoothly.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 23, 2023
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Takayuki Ikai, Seiichi Maruyama, Kiyoshi Iwamoto
  • Publication number: 20230136359
    Abstract: Provided is a thermoplastic resin composite material or a thermoplastic resin composite material particle that includes cellulose fibers, can be used to obtain a molded article excellent in mechanical properties such as strength, and is so excellent in fluidity during melting as to be excellent in molding processability. A thermoplastic resin composite material including cellulose fibers, a compatibilizer, and a thermoplastic resin, wherein the cellulose fibers substantially include only fibers having a fiber diameter of 1 to 50 ?m and a fiber length of 10 to 400 ?m, a composition ratio by mass of the cellulose fibers to the thermoplastic resin is 10:90 to 80:20, and arbitrary 10 sections of the thermoplastic resin composite material have a standard deviation of a proportion of an area occupied by the cellulose fibers per predetermined area, the standard deviation being 15% or less.
    Type: Application
    Filed: June 15, 2021
    Publication date: May 4, 2023
    Inventors: Nobuhiro KUBOTA, Kiyoshi IWAMOTO, Masayoshi SANO, Hiroaki KAWAGUCHI, Yudai KIMURA, Hideo AKAZAWA
  • Patent number: 11353219
    Abstract: A heating cooker including a case including a cooking chamber configured to receive an object to be heated, a door configured to open and close the cooking chamber of the case, a ventilation path provided to extend along a wall surface of the cooking chamber in a state of being partitioned from the cooking chamber, a detector installed in the inside of the ventilation path and including one or more sensors configured to detect information on the inside of the cooking chamber through one or more detection holes formed on the wall surface of the cooking chamber, a shutter installed in the inside of the ventilation path and configured to open and close the one or more detection holes, and a cooling fan configured to suck outside air and blow the outside air into the ventilation path so as to cool the detector and the shutter together.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: June 7, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kiyoshi Iwamoto, Kazuo Shimizu
  • Publication number: 20220049853
    Abstract: A range hood for collecting oil scattered from a rotating disk filter, capable of improving the cleaning workability is provided. The range hood includes a fan configured to generate an air flow, a disk filter provided on a flow path of the air flow and having a slit, a motor configured to rotate the disk filter, a rectifying plate provided upstream of the disk filter on the flow path of the air flow, and a disk cover configured to surround an outer periphery portion of the disc filter and having an outlet portion that allows oil from the disk filter to flow out to a predetermined portion of the rectifying plate.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 17, 2022
    Inventors: Kiyoshi IWAMOTO, Kazutoshi TAKENOSHITA, Kenichi MURATA, Yurika KIDA
  • Publication number: 20210178803
    Abstract: A writing tool includes a refill having an ink reservoir tube formed to be a straight cylinder whose wall thickness is less than 0.56 mm; and a writing tip or a relay member holding the writing tip attached to a first end of the ink reservoir tube, wherein the refill is detachably attached to a barrel, wherein in the refill, amounting strength between the writing tip or the relay member holding the writing tip and the ink reservoir tube is set higher than a mounting strength between the barrel and a connecting portion of the ink reservoir tube. There is provided a writing tool that can prevent the occurrence of a problem such as leakage of ink at a time of replacement of refills and perform replacement of refills smoothly.
    Type: Application
    Filed: June 17, 2019
    Publication date: June 17, 2021
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Takayuki IKAI, Seiichi MARUYAMA, Kiyoshi IWAMOTO
  • Publication number: 20210003289
    Abstract: A heating cooker including a case including a cooking chamber configured to receive an object to be heated, a door configured to open and close the cooking chamber of the case, a ventilation path provided to extend along a wall surface of the cooking chamber in a state of being partitioned from the cooking chamber, a detector installed in the inside of the ventilation path and including one or more sensors configured to detect information on the inside of the cooking chamber through one or more detection holes formed on the wall surface of the cooking chamber, a shutter installed in the inside of the ventilation path and configured to open and close the one or more detection holes, and a cooling fan configured to suck outside air and blow the outside air into the ventilation path so as to cool the detector and the shutter together.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Inventors: Kiyoshi IWAMOTO, Kazuo SHIMIZU
  • Patent number: 10670277
    Abstract: Provided is an oven having an improved structure for keeping a cooking chamber clean. The oven includes a main body, a cooking chamber provided inside the main body, a main heater disposed inside the cooking chamber, a fan disposed inside the cooking chamber to circulate air heated by the main heater, a coating film formed on at least a part of a cooking chamber inner wall and having a liquid repellency, and a contaminant collecting portion having a liquid repellency smaller than that of the coating film and provided on the cooking chamber inner wall with which air circulated by the fan collides.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kiyoshi Iwamoto, Yasushi Urai, Shigeki Hayashi, Seiji Sato, Toshihiro Doi, Kazutoshi Takenoshita, Yurika Kida
  • Publication number: 20190049119
    Abstract: Provided is an oven having an improved structure for keeping a cooking chamber clean. The oven includes a main body, a cooking chamber provided inside the main body, a main heater disposed inside the cooking chamber, a fan disposed inside the cooking chamber to circulate air heated by the main heater, a coating film formed on at least a part of a cooking chamber inner wall and having a liquid repellency, and a contaminant collecting portion having a liquid repellency smaller than that of the coating film and provided on the cooking chamber inner wall with which air circulated by the fan collides.
    Type: Application
    Filed: February 10, 2017
    Publication date: February 14, 2019
    Inventors: Kiyoshi IWAMOTO, Yasushi URAI, Shigeki HAYASHI, Seiji SATO, Toshihiro DOI, Kazutoshi TAKENOSHITA, Yurika KIDA
  • Patent number: 9638860
    Abstract: It is an object of the present invention to simply position a lens and an optical fiber while suppressing an increase in cost. An optical coupling member includes an optical fiber (13), a holder (11) that holds the optical fiber (13) inserted from an insertion hole (11a) formed at one end, and a lens such as a collimator lens (12) accommodated in an accommodation section (11c) formed at the other end of the holder (11), in which positioning is performed by causing the lens and/or the end face of the optical fiber (13) to come into contact with a tapered surface provided at a position facing the lens (12) and the optical fiber (13) in a protruding portion (11e) formed on an inner surface in the vicinity of the accommodation section (11c) of the holder (11).
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: May 2, 2017
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Naohiko Moriya, Kiyoshi Iwamoto
  • Patent number: 9372313
    Abstract: An optical coupling member includes an optical fiber (13), a holder (11) that holds the optical fiber inserted from an insertion hole (11a) formed at one end, and a lens such as a collimator lens (12) accommodated in an accommodation section (11c) formed at the other end of the holder (11), the optical coupling member performing positioning by causing at least one of the lens and the end face of the optical fiber (13) to come into contact with an abutting surface (11e1, 11e2) formed in the vicinity of the accommodation section (11c) by providing a recess (11e) on an outer circumference near the accommodation section (11c) of the holder (11), in which a plurality of the recesses (11e) are provided on an identical plane orthogonal to an insertion direction of the optical fiber (13).
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: June 21, 2016
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hitoshi Suzuki, Naohiko Moriya, Kiyoshi Iwamoto
  • Patent number: 9195016
    Abstract: An optical connector has: a holding member having an accommodating portion formed at an end thereof for accommodating a collimator lens and an insertion hole formed at an opposite end thereof for inserting an optical fiber; and a resin joint having a first insertion hole formed at an end thereof for inserting the holding member and a second insertion hole formed at an opposite end thereof for inserting the optical fiber. The collimator lens and the optical fiber are positioned by making at least one of the collimator lens and an end surface of the optical fiber abut against a recess formed in the holding member near the accommodating portion. The resin joint has a fixing portion formed therein for fixing a part of the optical fiber positioned in the holding member inserted via the first insertion hole into the resin joint, the part being exposed from the holding member.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: November 24, 2015
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hitoshi Suzuki, Takeshi Kobayashi, Kiyoshi Iwamoto
  • Publication number: 20140301698
    Abstract: It is an object of the present invention to simply position a lens and an optical fiber while suppressing an increase in cost. An optical coupling member includes an optical fiber (13), a holder (11) that holds the optical fiber (13) inserted from an insertion hole (11a) formed at one end, and a lens such as a collimator lens (12) accommodated in an accommodation section (11c) formed at the other end of the holder (11), in which positioning is performed by causing the lens and/or the end face of the optical fiber (13) to come into contact with a tapered surface provided at a position facing the lens (12) and the optical fiber (13) in a protruding portion (11e) formed on an inner surface in the vicinity of the accommodation section (11c) of the holder (11).
    Type: Application
    Filed: October 15, 2012
    Publication date: October 9, 2014
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Naohiko Moriya, Kiyoshi Iwamoto
  • Publication number: 20140270648
    Abstract: An optical coupling member includes an optical fiber (13), a holder (11) that holds the optical fiber inserted from an insertion hole (11a) formed at one end, and a lens such as a collimator lens (12) accommodated in an accommodation section (11c) formed at the other end of the holder (11), the optical coupling member performing positioning by causing at least one of the lens and the end face of the optical fiber (13) to come into contact with an abutting surface (11e1, 11e2) formed in the vicinity of the accommodation section (11c) by providing a recess (11e) on an outer circumference near the accommodation section (11c) of the holder (11), in which a plurality of the recesses (11e) are provided on an identical plane orthogonal to an insertion direction of the optical fiber (13).
    Type: Application
    Filed: May 23, 2012
    Publication date: September 18, 2014
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hitoshi Suzuki, Naohiko Moriya, Kiyoshi Iwamoto
  • Publication number: 20140126864
    Abstract: An optical connector has: a holding member having an accommodating portion formed at an end thereof for accommodating a collimator lens and an insertion hole formed at an opposite end thereof for inserting an optical fiber; and a resin joint having a first insertion hole formed at an end thereof for inserting the holding member and a second insertion hole formed at an opposite end thereof for inserting the optical fiber. The collimator lens and the optical fiber are positioned by making at least one of the collimator lens and an end surface of the optical fiber abut against a recess formed in the holding member near the accommodating portion. The resin joint has a fixing portion formed therein for fixing a part of the optical fiber positioned in the holding member inserted via the first insertion hole into the resin joint, the part being exposed from the holding member.
    Type: Application
    Filed: April 2, 2012
    Publication date: May 8, 2014
    Applicant: MITSUBISHI PENCIL CO., LTD.
    Inventors: Hitoshi Suzuki, Takeshi Kobayashi, Kiyoshi Iwamoto
  • Patent number: 8687929
    Abstract: In order to facilitate positioning of a collimator lens and an optical fiber while preventing cost increase, provided is an optical collimator having a holder (11) which has a cylindrical shape and is made of metal; a collimator lens (12) which is housed in a housing part (11c) formed at an end of the holder (11); and an optical fiber (13) which is inserted via an insertion hole (11a) formed at an opposite end of the holder (11) and is fixed at a predetermined position. At least one of the collimator lens (12) and an end surface of the optical fiber (13) is made to abut to a recess (11e) formed in proximity of the housing part (11c) of the holder (11) thereby to perform positioning.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: April 1, 2014
    Assignee: Mitsubishi Pencil Company Limited
    Inventors: Naohiko Moriya, Yojiro Sano, Hitoshi Suzuki, Kiyoshi Iwamoto
  • Publication number: 20130114926
    Abstract: In order to facilitate positioning of a collimator lens and an optical fiber while preventing cost increase, provided is an optical collimator having a holder (11) which has a cylindrical shape and is made of metal; a collimator lens (12) which is housed in a housing part (11c) formed at an end of the holder (11); and an optical fiber (13) which is inserted via an insertion hole (11a) formed at an opposite end of the holder (11) and is fixed at a predetermined position. At least one of the collimator lens (12) and an end surface of the optical fiber (13) is made to abut to a recess (11e) formed in proximity of the housing part (11c) of the holder (11) thereby to perform positioning.
    Type: Application
    Filed: April 5, 2011
    Publication date: May 9, 2013
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Naohiko Moriya, Yojiro Sano, Hitoshi Suzuki, Kiyoshi Iwamoto
  • Publication number: 20100105738
    Abstract: The invention provides extended release formulations of proton pump inhibitor, such as an extended release formulation of rabeprazole, comprising an amount of rabeprazole between 30 and 90 mg rabeprazole and having an AUC of between 900 and 1750 ng*hr/mL and other properties.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 29, 2010
    Inventors: Mitsuru Mizuno, Shigeru Aoki, Kiyoshi Iwamoto, Kenji Moroshima, Yasuhiro Zaima, Manabu Murakami, Yukio Horai, Takashi Seno, Norihiro Ueda
  • Publication number: 20080124536
    Abstract: The present invention provides an image-receiving sheet for electrophotography wherein the water-resistant image-receiving sheet for electrophotography, comprises a base paper, one or two plastic films adhered to the one or both surfaces of the base paper, and a toner-receiving layer formed on at least a surface of the plastic film, wherein a main component of the toner-receiving layer is a resin with a transition temperature of 0l to 80° C., and the surface resistance is 1×107 to 1×1011 ?/?.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 29, 2008
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Kiyoshi Iwamoto, Nobuhiro Kubota, Senichi Yoshizawa
  • Patent number: 7345100
    Abstract: A water-based ink composition for a ballpoint pen containing at least colored resin particles which have an average particle diameter of 2 to 20 ?m and which are non-thermoplastic in a proportion of 5 to 30% by weight based on the total amount of the ink composition and non-colored particles having a glass transition point of 60° C. or higher. The average particle diameter of the non-colored particles is preferably to 0.01 to 10 ?m. The ink composition preferably includes at least one selected from ethylene oxide or propylene oxide adducts of glycerin and ethylene oxide or propylene oxide adducts of diglycerin in a proportion of 1 to 30% by weight based on the total amount of the ink composition.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 18, 2008
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Kiyoshi Iwamoto, Hideaki Tomi, Yoji Takeuchi, Masaru Miyamoto