Patents by Inventor Yoshiaki Murakami

Yoshiaki Murakami 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: 20210070777
    Abstract: An object is to establish a technology with which an organic magnesium compound can be easily and efficiently synthesized at a low cost with few steps that do not involve a complex chemical method. A method for synthesizing an organic magnesium compound includes, in a reaction solvent, reacting an organic halide represented by General Formula I (Ra—Xa) with a dispersion product obtained by dispersing sodium in a dispersion solvent to obtain an organic sodium compound represented by General Formula II (Ra—Na), and reacting the obtained organic sodium compound with a magnesium halide represented by General Formula III (Mg—(Xb)2) to obtain an organic magnesium compound represented by General Formula IV (Ra—Mg—Xb).
    Type: Application
    Filed: December 27, 2018
    Publication date: March 11, 2021
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20210070782
    Abstract: An object is to establish a technology with which a boronate ester compound can be easily and efficiently synthesized at a low cost with a small number of steps without the need for a complex chemical method and reagents that need to be carefully handled. A further object is to establish a sodium salt of a boronate ester compound that is a novel compound and a technology for synthesizing the sodium salt of a boronate ester compound. Provided are a sodium salt of a boronate ester compound and a method for synthesizing a boronate ester compound or a sodium salt of a boronate ester compound that includes reacting, in a reaction solvent, an organic chloride with a dispersion product obtained by dispersing sodium in a dispersion solvent to obtain an organic sodium compound, and reacting the obtained organic sodium compound with a borate ester compound to obtain a boronate ester compound or a sodium salt of a boronate ester compound.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 11, 2021
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Patent number: 10836723
    Abstract: There is a demand for the development of a technique according to which sodium 2,2,6,6-tetramethylpiperidides (Na-TMPs) can be economically and efficiently synthesized through simple operations including a small number of steps under mild conditions in a short period of time. Also, there is a demand for the development of a technique according to which high-quality Na-TMPs that do not contain lithium or lithium compounds such as Li-TMP can be synthesized. The method for synthesizing sodium 2,2,6,6-tetramethylpiperidides includes a step of obtaining sodium 2,2,6,6-tetramethylpiperidides by reacting, in a reaction solvent, 2,2,6,6-tetramethylpiperidines with a dispersion product obtained by dispersing sodium in a dispersion solvent or an organosodium compound having an aromatic ring obtained through a reaction with a dispersion product obtained by dispersing sodium in a dispersion solvent.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 17, 2020
    Assignee: KOBELCO ECO-SOLUTIONS CO., LTD.
    Inventors: Yoshiaki Murakami, Miyuki Fukushima, Kazuhiko Takai, Sobi Asako
  • Publication number: 20200324823
    Abstract: An impact absorbing structure for a vehicle according to the present invention includes a frame member formed of a resin material. The frame member includes a closed cross sectional portion extending in a vehicle front-rear direction, and a rib protruding at least either upward or downward from the closed cross sectional portion and extending in the vehicle front-rear direction.
    Type: Application
    Filed: December 11, 2018
    Publication date: October 15, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Chikara KAWAMURA, Tsuyoshi NISHIHARA, Kazutaka ISHIKURA, Hiroaki TAKESHITA, Tsuneki SHIMANAKA, Taiki YOTSUYANAGI, Yoshiaki MURAKAMI
  • Publication number: 20200317614
    Abstract: There is a demand for the development of a technique according to which a reaction for coupling a halogenated pyridine compound with a halogenated aromatic compound can be performed in a simple manner through a small number of steps without using expensive agents such as a palladium catalyst. A method for coupling a halogenated pyridine compound with a halogenated aromatic compound includes a step of coupling a halogenated pyridine compound with a halogenated aromatic compound to obtain a pyridine compound by reacting, in a reaction solvent, the halogenated pyridine compound and the halogenated aromatic compound with a solution containing an alkali metal.
    Type: Application
    Filed: May 25, 2017
    Publication date: October 8, 2020
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA
  • Publication number: 20200270212
    Abstract: Provided are an electron donor that is easy to handle and can be used to carry out a coupling reaction economically and efficiently through simple operations under mild conditions in a short period of time, and a method for synthesizing 4,4?-bipyridine using the electron donor. The electron donor includes a mixture of a dispersion product obtained by dispersing sodium in a dispersion solvent and 1,3-dimethyl-2-imidazolidinone, and this electron donor is used in the method for synthesizing 4,4?-bipyridine.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 27, 2020
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20200248290
    Abstract: Provided is an abrasion-resistant steel plate which has high hardness up to the mid-thickness part thereof although the steel plate is 50 mm or more, and can be manufactured at low cost. The abrasion-resistant steel plate has a specific chemical composition having DI* of 120 or more, where DI* is defined by the following Formula (1): DI*=33.85×(0.1×C)0.5×(0.7×Si+1)×(3.33×Mn+1)×(0.35×Cu+1)×(0.36×Ni+1)×(2.16×Cr+1)×(3×Mo+1)×(1.75×V+1)×(1.5×W+1) . . . (1), has HB1 of 360 HBW10/3000 to 490 HBW10/3000, HB1 being a Brinell hardness at a depth of 1 mm from a surface, has a hardness ratio, HB1/2 to HB1, of 75% or more, HB1/2 being a Brinell hardness at a mid-thickness position, and has a plate thickness of 50 mm or more.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 6, 2020
    Applicant: JFE STEEL CORPORATION
    Inventors: Naoki TAKAYAMA, Yusuke TERAZAWA, Yoshiaki MURAKAMI, Kazukuni HASE, Yusaku TAKEMURA, Yasuhiro MUROTA
  • Patent number: 10544098
    Abstract: A target bipyridine compound is synthesized with high purity and a high yield in a simple and safe manner in a short period of time. A method for synthesizing a di-tert-butyl-2,2?-bipyridine compound is provided, and the method includes a step of reacting, in a reaction solvent, a tert-butylpyridine compound with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent. A method for synthesizing a bipyridine compound having no substituents is also provided, and the method includes a step of reacting, in a reaction solvent, pyridine with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: January 28, 2020
    Assignee: Kobelco Eco-Solutions Co., Ltd.
    Inventors: Yoshiaki Murakami, Yukihiro Goto, Miyuki Fukushima, Kazuhiko Takai, Sobi Asako
  • Publication number: 20190359571
    Abstract: There is a demand for the development of a technique according to which sodium 2,2,6,6-tetramethylpiperidides (Na-TMPs) can be economically and efficiently synthesized through simple operations including a small number of steps under mild conditions in a short period of time. Also, there is a demand for the development of a technique according to which high-quality Na-TMPs that do not contain lithium or lithium compounds such as Li-TMP can be synthesized. The method for synthesizing sodium 2,2,6,6-tetramethylpiperidides includes a step of obtaining sodium 2,2,6,6-tetramethylpiperidides by reacting, in a reaction solvent, 2,2,6,6-tetramethylpiperidines with a dispersion product obtained by dispersing sodium in a dispersion solvent or an organosodium compound having an aromatic ring obtained through a reaction with a dispersion product obtained by dispersing sodium in a dispersion solvent.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 28, 2019
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20190352749
    Abstract: A steel material for high heat input welding used for low-temperature storage tanks, and has excellent joint strength and low-temperature toughness at ?55° C. of a weld heat-affected zone when high heat input welding at a heat input exceeding 80 kJ/cm is performed. The steel material has a specified chemical composition in which Mn, Cu, and Ni are contained so as to satisfy: 1.85?Mn+0.4×(Cu+Ni)?2.10, where Mn, Cu, and Ni represent the contents, by mass%, of respective components or are set to zero if not contained.
    Type: Application
    Filed: August 22, 2017
    Publication date: November 21, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Koichi NAKASHIMA, Yoshiaki MURAKAMI, Kazukuni HASE
  • Patent number: 10479302
    Abstract: An impact absorbing structure includes an impact absorbing member made of CFRP, and the impact absorbing member includes a pair of left and right side wall portions and upper and lower coupling wall portions each coupling the side wall portions. Each of the pair of side wall portions includes a plurality of curved portions. Each of the curved portions is formed such that a leftward/rightward direction depth thereof decreases toward a front side. Each of the pair of side wall portions includes: a plurality of first carbon fibers arranged to extend in a forward/rearward direction and constituting most of reinforced fibers contained in the side wall portion; and a plurality of second carbon fibers arranged to extend in a direction intersecting with the first carbon fibers. The plurality of second carbon fibers are arranged at both thickness direction end vicinity parts of each of the side wall portions.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 19, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Chikara Kawamura, Taiki Yotsuyanagi, Hiroaki Takeshita, Tsuyoshi Nishihara, Tsuneki Shimanaka, Takayuki Kimura, Yoshiaki Murakami
  • Publication number: 20180282278
    Abstract: A target bipyridine compound is synthesized with high purity and a high yield in a simple and safe manner in a short period of time. A method for synthesizing a di-tert-butyl-2,2?-bipyridine compound is provided, and the method includes a step of reacting, in a reaction solvent, a tert-butylpyridine compound with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent. A method for synthesizing a bipyridine compound having no substituents is also provided, and the method includes a step of reacting, in a reaction solvent, pyridine with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 4, 2018
    Inventors: Yoshiaki MURAKAMI, Yukihiro GOTO, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20180251088
    Abstract: An impact absorbing structure includes an impact absorbing member made of CFRP, and the impact absorbing member includes a pair of left and right side wall portions and upper and lower coupling wall portions each coupling the side wall portions. Each of the pair of side wall portions includes a plurality of curved portions. Each of the curved portions is formed such that a leftward/rightward direction depth thereof decreases toward a front side. Each of the pair of side wall portions includes: a plurality of first carbon fibers arranged to extend in a forward/rearward direction and constituting most of reinforced fibers contained in the side wall portion; and a plurality of second carbon fibers arranged to extend in a direction intersecting with the first carbon fibers. The plurality of second carbon fibers are arranged at both thickness direction end vicinity parts of each of the side wall portions.
    Type: Application
    Filed: November 8, 2016
    Publication date: September 6, 2018
    Inventors: Chikara Kawamura, Taiki Yotsuyanagi, Hiroaki Takeshita, Tsuyoshi Nishihara, Tsuneki Shimanaka, Takayuki Kimura, Yoshiaki Murakami
  • Patent number: 8496282
    Abstract: A cabin in a construction machine has a door having a vertically extending door frame and a door glass attached to the door frame. The door frame has a pulling handle portion which is attached to the cabin frame pivotally around a vertical pivot axis and projects in a direction having a component extending away from the door glass. The pulling handle portion is aligned with the riding handle in front and rear directions outside the cabin when the door is fully opened. The pulling handle portion satisfies at least one of a first condition that the height position of the second gripped portion is offset upward from the height position of the riding handle, and a second condition that the second gripped portion of the pulling handle portion extends in a second extending direction different from the first extending direction.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: July 30, 2013
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Yoshiaki Murakami, Masafumi Yoneda
  • Patent number: 8303027
    Abstract: Provided is a front window formed in a cabin including an upper window formed in a front face of the cabin and having a window frame with an underside portion, and a lower window disposed below the upper window so as to contact the upper window, while being capable of inhibiting condensed water from building up on the underside portion and rusting the underside portion. The upper window is provided with a glass plate having a periphery to be attached to an outer face of the window frame, defining a clearance between the underside portion and the glass plate to let out the condensed water generated on an inner face of the glass plate downwardly from the underside portion.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 6, 2012
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Yoshiaki Murakami, Masafumi Yoneda
  • Patent number: 8287033
    Abstract: In a construction machine such as a hydraulic excavator in which a boom of a working attachment is arranged to one of the left and right sides of a cab into which an operator gets on, a load transmission member for transmitting a lateral load imposed on the cab at the time of rollover of a machine main body to the boom serving as a load receiving member is attached to a side surface of the boom in a state that the load transmission member is elastically deformable taking a boom attachment point as a supporting point, further, a projection piece is provided for this load transmission member, and a clearance is formed between this projection piece and a left end surface of a top plate of the boom.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: October 16, 2012
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Keiji Yamamoto, Yoshiaki Murakami, Masakazu Ozaki
  • Patent number: 8240745
    Abstract: In a construction machine wherein a cab is mounted on an upper frame of an upper rotating body through an anti-vibration mount, a guard member for protecting the cab in the event of a roll over of the construction machine is mounted so as to extend from a front face portion to a ceiling of the cab, and a lower end of a front portion of the guard member which front portion covers the front face portion of the cab is fixed to a front end portion of the upper frame by a fixing mechanism which permits movement of the cab created in both vertical and horizontal directions by the anti-vibration mount.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: August 14, 2012
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Keiji Yamamoto, Kazuaki Kobayashi, Yoshiaki Murakami
  • Patent number: 8235457
    Abstract: A rear beam has a first beam with right and left ends welded to right and left rear supports and a second beam welded to a front surface of the first beam along the right and left direction. The second beam is welded to the first beam so that an upper end portion of the second beam is above an upper end portion of the first beam and a lower end portion of the second beam is above a lower end portion of the first beam.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: August 7, 2012
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Keiji Yamamoto, Yoshiaki Murakami
  • Patent number: 8225660
    Abstract: A dynamic quantity sensor includes a sensor chip, a base member, and bumps. The sensor chip includes a semiconductor substrate, a sensor part, and sensor pads electrically coupled with the sensor part. The base member includes a base substrate and base pads disposed on the base substrate. The bumps mechanically and electrically couple the sensor pads and the base pads, respectively, in a state where the sensor chip is curved with respect to the base member. The sensor pads include input pads and output pads. The first surface of the semiconductor substrate includes a first portion and a second portion. The first portion is closer to the base substrate than the second portion is. At least one of the input pads is disposed on the first portion and at least one of the output pads is disposed on the second portion.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: July 24, 2012
    Assignee: DENSO CORPORATION
    Inventors: Minekazu Sakai, Takashi Katsumata, Yoshiaki Murakami
  • Publication number: 20120056412
    Abstract: A working machine is provided with a pressing mechanism 40 for pressing a pressing plate 20 toward an upper frame 11, and a restricting mechanism 41 fixed to the upper frame 11 between a fuel tank 15 and the upper frame 11. The fuel tank 15 is pressed toward the upper frame 11 by the pressing mechanism 40 at a bottom surface of the fuel tank 15, whereby a lower recess 32a vertically engageable with at least a part of the restricting mechanism 41 is formed.
    Type: Application
    Filed: August 17, 2011
    Publication date: March 8, 2012
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kenji KAWAMOTO, Yoshiaki Murakami, Toshihisa Matsumoto