Patents by Inventor Masahiro Takebayashi

Masahiro Takebayashi 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: 20230014605
    Abstract: A toner includes toner base particles and external additives deposited on a surface of the toner base particle. The toner base particle includes an amorphous polyester resin, a crystalline polyester resin, a release agent, and resin particles. An abundance ratio of the crystalline polyester resin in the surface of the toner base particle as observed by TEM is 2.5% or greater but 25% or less. The resin particles are deposited at the surface of the toner base particle as observed by SEM. A ratio of aggregates of the resin particles occupying the surface of the toner base particle is 1% or greater but 70% or less, where R is a major axis of the minimum particle of the resin particles, and the resin particle having a major axis of 3R or greater is determined as the aggregate.
    Type: Application
    Filed: July 6, 2022
    Publication date: January 19, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Akinori SAITOH, Akio Takei, Toma Takebayashi, Masahiro Yukikawa, Tomomi Harashima, Hiroshi Yamada
  • Patent number: 9803900
    Abstract: A screw compressor and a chiller unit are provided. An oil separator of the screw compressor may include an outer cylinder, an inner cylinder positioned inside the outer cylinder, and an introducing flow path. The upper end of the inner cylinder is held by the oil separator and the outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. The diameter of the inner wall of the outer cylinder may gradually be reduced along the swirl flow path. The refrigerant via the introducing passage swirls and goes down along the swirl flow path and is separated into gas refrigerant and oil. The separated gas refrigerant flows from the lower end of the inner cylinder into the inner cylinder and goes up, and the separated oil flows down along the inner wall surface of the outer cylinder.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: October 31, 2017
    Assignee: Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited
    Inventors: Ryuichiro Yonemoto, Yasuaki Iizuka, Eisuke Kato, Shu Kuriyama, Masahiro Takebayashi
  • Patent number: 9568003
    Abstract: A screw compressor is disclosed, which includes a male rotor and a female rotor and an oil separator. The oil separator includes an outer cylinder, an inner cylinder located inside the outer cylinder, and an introducing flow path. An upper end portion of the inner cylinder is held by the oil separator and an outer wall of the inner cylinder is held independently of the inner wall of the outer cylinder. A diameter of an inner wall of the outer cylinder is configured so that the diameter is gradually reduced along a swirl flow path. Moreover, refrigerant that flowed in swirls and goes down along the swirl flow path. The separated gas refrigerant flows from a lower end portion of the inner cylinder into the inner cylinder and goes up and the separated oil flowing down along the inner wall surface of the outer cylinder.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 14, 2017
    Assignee: Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited
    Inventors: Ryuichiro Yonemoto, Yasuaki Iizuka, Eisuke Kato, Shu Kuriyama, Masahiro Takebayashi
  • Publication number: 20170038107
    Abstract: A screw compressor in which it is possible to achieve size reduction and reduce the oil rate and a chiller unit equipped with the screw compressor are provided. In the screw compressor, an oil separator includes: an outer cylinder; an inner cylinder positioned inside the outer cylinder; and an introducing flow path that lets refrigerant discharged from a compression working chamber flow in so that the refrigerant swirls to the circumferential direction on the inner wall surface of the outer cylinder. The upper end portion of the inner cylinder is held by the oil separator and the outer wall of the inner cylinder is thereby held independently of the inner wall of the outer cylinder. The diameter of the inner wall of the outer cylinder is so configured that the diameter is gradually reduced along the swirl flow path in which refrigerant that flowed in through the introducing flow path swirls.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Inventors: Ryuichiro YONEMOTO, Yasuaki IIZUKA, Eisuke KATO, Shu KURIYAMA, Masahiro TAKEBAYASHI
  • Publication number: 20150226218
    Abstract: A screw compressor in which it is possible to achieve size reduction and reduce the oil rate and a chiller unit equipped with the screw compressor are provided. In the screw compressor, an oil separator includes: an outer cylinder; an inner cylinder positioned inside the outer cylinder; and an introducing flow path that lets refrigerant discharged from a compression working chamber flow in so that the refrigerant swirls to the circumferential direction on the inner wall surface of the outer cylinder. The upper end portion of the inner cylinder is held, by the oil separator and the outer wall of the inner cylinder is thereby held independently of the inner wall of the outer cylinder. The diameter of the inner wall of the outer cylinder is so configured that the diameter is gradually reduced along the swirl flow oath in which refrigerant that flowed in through the introducing flow path swirls.
    Type: Application
    Filed: July 10, 2013
    Publication date: August 13, 2015
    Inventors: Ryuichiro Yonemoto, Yasuaki Iizuka, Eisuke Kato, Shu Kuriyama, Masahiro Takebayashi
  • Patent number: 8354426
    Abstract: Disclosed is 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate, which has strong antibacterial activity. The compound is highly safe and useful as an original drug for pharmaceutical preparations. Also disclosed is a method which is useful for producing 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: January 15, 2013
    Assignees: Toyama Chemical Co., Ltd., Taisho Pharmaceutical Co., Ltd.
    Inventors: Taro Kiyoto, Masahiro Takebayashi, Yasutaka Baba, Muneo Syoji, Toshiya Noguchi, Fumihito Ushiyama, Hiroki Urabe, Hiromasa Horikiri
  • Patent number: 8153816
    Abstract: A 6-(halomethyl)-1,2-benzisoxazol-3(2H)-one derivative represented by the formula: wherein R5 is a methyl group that is substituted with one or more optionally substituted phenyl groups, or an optionally substituted oxygen-containing heterocyclic group; and X is a halogen atom.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: April 10, 2012
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Kenji Yonezawa, Tamotsu Takamatsu, Naokatu Aoki, Tomohiro Hashimoto, Masahiro Takebayashi, Yoshiaki Suzuki, Yuji Oonishi
  • Publication number: 20110263866
    Abstract: A 6-(halomethyl)-1,2-benzisoxazol-3(2H)-one derivative represented by the formula: wherein R5 is a methyl group that is substituted with one or more optionally substituted phenyl groups, or an optionally substituted oxygen-containing heterocyclic group; and X is a halogen atom.
    Type: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Kenji YONEZAWA, Tamotsu Takamatsu, Naokatu Aoki, Tomohiro Hashimoto, Masahiro Takebayashi, Yoshiaki Suzuki, Yuji Oonishi
  • Patent number: 8017789
    Abstract: A preparation method using as an intermediate 6-(halomethyl)-1,2-benzisoxazol-3(2H)-one derivative represented by general formula wherein R5 is a methyl group that is substituted with one or more optionally substituted phenyl groups, or an optionally substituted oxygen-containing heterocyclic group; X represents a halogen atom, can be used as a method for safely and easily preparing 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid, which is useful as an antirheumatic agent, with a high yield.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: September 13, 2011
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Kenji Yonezawa, Tamotsu Takamatsu, Naokatu Aoki, Tomohiro Hashimoto, Masahiro Takebayashi, Yoshiaki Suzuki, Yuji Oonishi
  • Publication number: 20100249417
    Abstract: Disclosed is 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate, which has strong antibacterial activity. The compound is highly safe and useful as an original drug for pharmaceutical preparations. Also disclosed is a method which is useful for producing 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate.
    Type: Application
    Filed: November 25, 2008
    Publication date: September 30, 2010
    Applicants: Toyama Chemical Co., Ltd., Taisho Pharmaceutical Co., Ltd.
    Inventors: Taro Kiyoto, Masahiro Takebayashi, Yasutaka Baba, Muneo Syoji, Toshiya Noguchi, Fumihito Ushiyama, Hiroki Urabe, Hiromasa Horikiri
  • Publication number: 20090099369
    Abstract: A preparation method using as an intermediate 6-(halomethyl)-1,2-benzisoxazol-3(2H)-one derivative represented by general formula wherein R5 is a methyl group that is substituted with one or more optionally substituted phenyl groups, or an optionally substituted oxygen-containing heterocyclic group; X represents a halogen atom, can be used as a method for safely and easily preparing 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid, which is useful as an antirheumatic agent, with a high yield.
    Type: Application
    Filed: February 19, 2007
    Publication date: April 16, 2009
    Applicant: TOYAMA CHEMICAL CO., LTD.
    Inventors: Kenji Yonezawa, Tamotsu Takamatsu, Naokatu Aoki, Tomohiro Hashimoto, Masahiro Takebayashi, Yoshiaki Suzuki, Yuji Oonishi
  • Patent number: 7354259
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: April 8, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Patent number: 7137796
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: November 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Patent number: 7118358
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: October 10, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Publication number: 20060057010
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 16, 2006
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Publication number: 20060051226
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 9, 2006
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Publication number: 20040247476
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Application
    Filed: July 9, 2004
    Publication date: December 9, 2004
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Patent number: 6769888
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: August 3, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Publication number: 20030190247
    Abstract: There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 9, 2003
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa
  • Patent number: 6589035
    Abstract: There is provided a scroll compressor having high overall efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: July 8, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Isamu Tsubono, Masahiro Takebayashi, Isao Hayase, Koichi Inaba, Koichi Sekiguchi, Kenichi Oshima, Atsushi Shimada, Takehiro Akizawa