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).
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Patent number: 11867407Abstract: 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: GrantFiled: July 30, 2021Date of Patent: January 9, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Kiyoshi Iwamoto, Kazutoshi Takenoshita, Kenichi Murata, Yurika Kida
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Patent number: 11654711Abstract: 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: GrantFiled: June 17, 2019Date of Patent: May 23, 2023Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takayuki Ikai, Seiichi Maruyama, Kiyoshi Iwamoto
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Publication number: 20230136359Abstract: 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: ApplicationFiled: June 15, 2021Publication date: May 4, 2023Inventors: Nobuhiro KUBOTA, Kiyoshi IWAMOTO, Masayoshi SANO, Hiroaki KAWAGUCHI, Yudai KIMURA, Hideo AKAZAWA
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Patent number: 11353219Abstract: 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: GrantFiled: July 2, 2020Date of Patent: June 7, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Kiyoshi Iwamoto, Kazuo Shimizu
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Publication number: 20220049853Abstract: 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: ApplicationFiled: July 30, 2021Publication date: February 17, 2022Inventors: Kiyoshi IWAMOTO, Kazutoshi TAKENOSHITA, Kenichi MURATA, Yurika KIDA
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Publication number: 20210178803Abstract: 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: ApplicationFiled: June 17, 2019Publication date: June 17, 2021Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takayuki IKAI, Seiichi MARUYAMA, Kiyoshi IWAMOTO
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Publication number: 20210003289Abstract: 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: ApplicationFiled: July 2, 2020Publication date: January 7, 2021Inventors: Kiyoshi IWAMOTO, Kazuo SHIMIZU
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Patent number: 10670277Abstract: 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: GrantFiled: February 10, 2017Date of Patent: June 2, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Kiyoshi Iwamoto, Yasushi Urai, Shigeki Hayashi, Seiji Sato, Toshihiro Doi, Kazutoshi Takenoshita, Yurika Kida
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Publication number: 20190049119Abstract: 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: ApplicationFiled: February 10, 2017Publication date: February 14, 2019Inventors: Kiyoshi IWAMOTO, Yasushi URAI, Shigeki HAYASHI, Seiji SATO, Toshihiro DOI, Kazutoshi TAKENOSHITA, Yurika KIDA
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Patent number: 9638860Abstract: 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: GrantFiled: October 15, 2012Date of Patent: May 2, 2017Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Naohiko Moriya, Kiyoshi Iwamoto
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Patent number: 9372313Abstract: 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: GrantFiled: May 23, 2012Date of Patent: June 21, 2016Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Hitoshi Suzuki, Naohiko Moriya, Kiyoshi Iwamoto
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Patent number: 9195016Abstract: 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: GrantFiled: April 2, 2012Date of Patent: November 24, 2015Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Hitoshi Suzuki, Takeshi Kobayashi, Kiyoshi Iwamoto
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Publication number: 20140301698Abstract: 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: ApplicationFiled: October 15, 2012Publication date: October 9, 2014Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Naohiko Moriya, Kiyoshi Iwamoto
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Publication number: 20140270648Abstract: 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: ApplicationFiled: May 23, 2012Publication date: September 18, 2014Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Hitoshi Suzuki, Naohiko Moriya, Kiyoshi Iwamoto
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Publication number: 20140126864Abstract: 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: ApplicationFiled: April 2, 2012Publication date: May 8, 2014Applicant: MITSUBISHI PENCIL CO., LTD.Inventors: Hitoshi Suzuki, Takeshi Kobayashi, Kiyoshi Iwamoto
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Patent number: 8687929Abstract: 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: GrantFiled: April 5, 2011Date of Patent: April 1, 2014Assignee: Mitsubishi Pencil Company LimitedInventors: Naohiko Moriya, Yojiro Sano, Hitoshi Suzuki, Kiyoshi Iwamoto
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Publication number: 20130114926Abstract: 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: ApplicationFiled: April 5, 2011Publication date: May 9, 2013Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Naohiko Moriya, Yojiro Sano, Hitoshi Suzuki, Kiyoshi Iwamoto
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Publication number: 20100105738Abstract: 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: ApplicationFiled: October 4, 2007Publication date: April 29, 2010Inventors: Mitsuru Mizuno, Shigeru Aoki, Kiyoshi Iwamoto, Kenji Moroshima, Yasuhiro Zaima, Manabu Murakami, Yukio Horai, Takashi Seno, Norihiro Ueda
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Publication number: 20080124536Abstract: 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: ApplicationFiled: November 28, 2005Publication date: May 29, 2008Applicant: TOMOEGAWA CO., LTD.Inventors: Kiyoshi Iwamoto, Nobuhiro Kubota, Senichi Yoshizawa
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Patent number: 7345100Abstract: 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: GrantFiled: November 7, 2002Date of Patent: March 18, 2008Assignee: Mitsubishi Pencil Kabushiki KaishaInventors: Kiyoshi Iwamoto, Hideaki Tomi, Yoji Takeuchi, Masaru Miyamoto