Patents by Inventor Koji Kawamura

Koji Kawamura 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: 6316406
    Abstract: A depsipeptide containing N-substituted glycine residue having the formula (1) or (2): (wherein R1 is a straight or branched alkyl group of 5-20 carbon atoms or a straight or branched alkoxymethyl group of 5-15 carbon atoms; R2 is a group of the formula —A—B—W—(D)m—(E)n, —A—B—W—(D)m—(E)n—F or —A—B—W—(D)m—(E)n—F—Z; R3 is a hydroxyl group, a lower alkoxy group, a benzyloxy group, or a group of the formula —Z, —Z—G or —Z—G—J; A, B, D, E, F, G and J independently are an N-substituted glycine residue or a residue of an amino acid selected from the group consisting of alanine, valine, leucine, serine, etc.; W and Z independently are a residue of an amino acid selected from the group consisting of an aspartic acid, a glutamic acid, etc.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: November 13, 2001
    Assignee: Nisshin Seifun Group Inc.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Patent number: 6288038
    Abstract: The present invention provides a new depsipeptide derivative having a piperazinone ring within the molecule which is represented by formula (1) wherein X1 represents N(R4)—CO, N(R5)—CH2, CH2—CO, CH2—CH2, CH═CH, CH2—CH(OH) or CH(OH)—CH(OH), R1 represents a C5-C20 alkyl group or a C5-C15 alkoxy C1-C4 alkyl group, R2-R5 represent a hydrogen atom or a C1-C6 alkyl group, and A represents a group of formula (2), (3) or (4) The depsipeptide derivative has a function of accelerating the production of apolipoprotein E and is useful as an agent for the treatment of neurologic injury, an agent for the treatment of dementia and an antihyperlipidemic agent.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: September 11, 2001
    Assignee: Nisshin Seifun Group Inc.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Publication number: 20010018529
    Abstract: Optically active alcohols of formulae (1) and (2) which are useful as intermediates for the synthesis of (RRR)-optical isomers of 1,4-benzodioxin-2-carboxylic acid derivatives which are useful as a prophylactic and therapeutic agent for diabetes, hyperglycemia and the like.
    Type: Application
    Filed: January 22, 2001
    Publication date: August 30, 2001
    Applicant: Nisshin Flour Milling Co., Ltd.
    Inventors: Koji Kawamura, Masahiro Ueno, Masashi Suzuki, Makoto Yanai, Toshihiro Takahashi, Koichi Itoh
  • Patent number: 6255286
    Abstract: Depsipeptides represented by the formula (1): (wherein: R1 is a straight or branched alkyl group of 5-20 carbon atoms or a straight or branched alkoxymethyl group of 5-15 carbon atoms; R2 is —A—B, —A—B—W, —A—B—W—D or —A—B—W—D—E, R3 is a hydroxyl group, a lower alkoxy group, a benzyloxy group, —Z, —Z—G or —Z—G—J, the above A, B, D, E, G and J independently each other are a residue of an amino acid selected from alanine, valine, leucine, isoleucine, serine, threonine, lysine, hydroxylysine, arginine, cysteine, methionine, phenylalanine, tyrosine, aspartic acid, asparagine, glutamic acid, glutamine and the like or an N—(C1-C4) alkyl derivative of these amino acid residues; the above W and Z independently each other are a residue of an amino acid selected from aspartic acid, asparagine, glutamic acid, glutamine, alanine, serine or lysine) or pharmacologically acceptable
    Type: Grant
    Filed: December 24, 1998
    Date of Patent: July 3, 2001
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Patent number: 6252041
    Abstract: A depsipeptide containing a non-natural amino acid(s) having the formula (1) wherein R1 represents a C5-C20 alkyl group and others; R2 represents —O—CO—CH(R5)—X—CH(R6)—NH— (wherein X represents N(R7)—CO, CH2—CO, CH2—CH2 and others, R5, R6, and R7 represent a hydrogen atom or a C1-C6 alkyl group); R3 represents and wherein the remaining substituent variables are as defined herein. The above depsipeptides have a promoting activity on the production of apolipoprotein E, and are useful as a therapeutic agent for neurologic damages, especially dementia, and hyperlipemia.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 26, 2001
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Patent number: 6227812
    Abstract: A refrigerant circuit includes a compressor and an expansion valve. The expansion valve is connected to a discharge muffler of the compressor by a high pressure conduit. The expansion valve is also connected to a suction passage of the compressor by a low pressure conduit. The high pressure conduit includes a condenser and the low pressure conduit includes an evaporator. A check valve is located between the discharge muffler and the high pressure conduit to selectively connect and disconnect the high pressure conduit with the discharge muffler. A relief valve is attached to the discharge muffler upstream of the check valve. If the pressure in the compressor is abnormally high when the check valve closes, the relief valve releases the abnormally high pressure from the discharge muffler. Therefore, if the check valve fails to function, the relief valve prevents the pressure in the compressor from being abnormally high.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: May 8, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masahiro Kawaguchi, Yoshihiro Makino, Masanori Sonobe, Koji Kawamura
  • Patent number: 6222050
    Abstract: Disclosed are optically active alcohols having formula (1) and (2) wherein R is (R)-1-phenylethylamino or (S)-1-phenylethylamino. The active alcohols can be prepared by acylating a racemate of formula (3) in the presence of a hydrolase, followed by alcoholysis or hydrolysis. R in formula (3) is the same as that defined for formula (1) and (2).
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: April 24, 2001
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Koji Kawamura, Masahiro Ueno, Masashi Suzuki, Makoto Yanai, Toshihiro Takahashi, Koichi Itoh
  • Patent number: 6211145
    Abstract: The present invention provides a bicyclic depsipeptide having the formula (1) wherein: R is a straight or branched alkyl group of 5-20 carbon atoms or a straight or branched alkoxymethyl group of 5-15 carbon atoms; A, D, E and J independently are a residue of an amino acid selected from the group of alanine, valine, leucine, etc.; B and F are the same or different and a residue of an amino acid selected from the group consisting of cysteine, aspartic acid, glutamic acid, lysine, hydroxylysine and serine; G is a disulfide bond, an amido bond or an ester bond; W is a residue of an amino acid selected from the group consisting of aspartic acid and glutamic acid; Z is a residue of an amino acid selected from the group consisting of aspartic acid, asparagine, glutamic acid and glutamine; l, m, n, p and q independently are 0 or 1; or a pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: April 3, 2001
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Patent number: 6204935
    Abstract: An image processor reads an original that includes an original image and an attribute instruction image, for designating the contents of the image processing that is performed on the original image. This ensures that image processing is performed in consonance with the contents of the attribute instructions that are indicated by the attribute instruction image. A scanner reads a format original wherein instructions for data attributes, such as a range for a character frame and a character color, are expressed with a bar code. The pattern of the read bar code is analyzed, and the attribute instruction data, such as the range for a character frame and a character color, are temporarily stored in a RAM. An original to be output is read by the scanner and is stored as image data in the RAM. Image processing (color conversion, etc.) that correspond to the attribute instruction data is performed on the image data, and a printer prints image data obtained by performing all of the instructed image processes.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: March 20, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsunenori Soma, Katsumi Masaki, Masayuki Takayama, Hiroshi Netsu, Masashi Takizawa, Makoto Nihei, Koji Kawamura
  • Patent number: 6077047
    Abstract: A variable displacement type compressor is disclosed. The compressor includes a housing, a cylinder bore within the housing, a piston located in the cylinder bore, a drive shaft rotatably supported by the housing, a rotary support mounted on the drive shaft, and a cam plate connected to the piston. The cam plate is supported tiltably on the drive shaft and is slidable in axial directions of the drive shaft. The cam plate inclines between a maximum inclination position and a minimum inclination position when the displacement of the compressor is changed. A first moment is applied to the cam plate by a compression reaction force of the piston when the compressor is operating. A hinge mechanism is located between the rotary support and the cam plate. The cam plate is rotated integrally with the drive shaft, the rotary support, and the hinge mechanism.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: June 20, 2000
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Hiroyuki Nagai, Masahiro Kawaguchi, Masanori Sonobe, Ken Suitou, Takuya Okuno, Koji Kawamura
  • Patent number: 6065943
    Abstract: A refrigerant compressor having a drive shaft rotatable to cause compression of a refrigerant gas, and a drive power transmission unit for transmitting a drive power from an external drive power source to the drive shaft, the drive power transmission unit having a pulley freely rotatably mounted around the drive shaft, a power transmitting element fixed to the drive shaft, and a shock absorbent rubber element arranged between the pulley and the power transmitting element for providing a positive engagement between the rubber element and the pulley, and between the rubber element and the power transmitting element.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: May 23, 2000
    Assignee: Denso Corporation
    Inventors: Ken Suito, Shinichi Ogura, Takashi Michiyuki, Koji Kawamura, Masahiko Okada, Masahiro Kawaguchi, Takuya Okuno
  • Patent number: 6061152
    Abstract: An image processing method and apparatus which makes possible image processing based on attribute specification contents specified by an attribute specification image by reading an original including an original image and the attribute specification image which specifies the contents of processings to be performed on the original image.A scanner reads a format original containing bar codes indicating data attribute specifications such as character limit range, character color, etc. The read bar code patterns are analyzed and the attribute specification data such as character limit range, character color, etc. is stored in RAM once. Then, the original to be output is read and stored in RAM as image data. Processings (such as color conversion, etc.) corresponding to the aforementioned attribute specification data are performed in relation to this image data.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: May 9, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Nihei, Katsumi Masaki, Masayuki Takayama, Hiroshi Netsu, Masashi Takizawa, Koji Kawamura
  • Patent number: 6008891
    Abstract: An automatic flaw removing method for long materials, comprises the steps of: inspecting long materials, such as round-bar steels and steel pipes, for surface flaws by a flaw inspecting apparatus of all section to divide the long materials into rejected materials having a flaw(s) and accepted materials having no flaw; storing information on the longitudinal position and length of each of the flaws of the rejected materials in a storage unit; sequentially carrying out the tracking of each of the rejected materials; moving a circumferential flaw probe directly connected to a grinder, to a longitudinal coordinate position of each of the flaws of the rejected materials, on the basis of the information on the longitudinal position of each of the flaws stored in the storage unit, when each of the rejected materials arrives at a flaw grinding position; rotating each of the rejected materials; identifying a circumferential position of each of the flaws by picking up a flaw indicative signal by the circumferential fla
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: December 28, 1999
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Hiroto Kobayashi, Yoshitomo Tamura, Koji Kawamura, Minoru Nakakusu
  • Patent number: 6001815
    Abstract: A depsipeptide containing N-substituted glycine residue having the formula (1) or (2): ##STR1## (wherein R.sub.1 is a straight or branched alkyl group of 5-20 carbon atoms or a straight or branched alkoxymethyl group of 5-15 carbon atoms; R.sub.2 is a group of the formula --A--B--W--(D).sub.m --(E).sub.n, --A--B--W--(D).sub.m --(E).sub.n --F or --A--B--W--(D).sub.m --(E).sub.n --F--Z; R.sub.3 is a hydroxyl group, a lower alkoxy group, a benzyloxy group, or a group of the formula --Z, --Z--G or --Z--G--J; A, B, D, E, F, G and J independently are an N-substituted glycine residue or a residue of an amino acid selected from the group consisting of alanine, valine, leucine, serine, etc.; W and Z independently are a residue of an amino acid selected from the group consisting of an aspartic acid, a glutamic acid, etc.; at least one of A, B, D, E, F, G and J is an N-substituted glycine residue) or a pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: December 14, 1999
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Makoto Yanai, Masashi Suzuki, Norio Oshida, Koji Kawamura, Shigeru Hiramoto, Orie Yasuda, Nobuhiro Kinoshita, Akiko Shingai, Masako Takasu
  • Patent number: 5842835
    Abstract: A compressor includes a cylinder block having a cylinder bore, a first housing attached to a first end of the cylinder block, a second housing attached to a second end of the cylinder block, a crank chamber defined between the cylinder block and the first housing, a drive plate located in the crank chamber and mounted on a drive shaft, and a piston operably coupled to the drive plate and located in the cylinder bore. The drive plate is tiltable between a maximum inclination position and a minimum inclination position according to a difference between the pressure in the crank chamber and the pressure in the cylinder bore. The cylinder block has a shutter chamber opening to the first end and the second end. A shutter member is accommodated in the shutter chamber. The shutter member is movable between a first position and a second position in response to the inclination of the drive plate to selectively connect and disconnect an external circuit with an suction chamber.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: December 1, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masahiro Kawaguchi, Masanori Sonobe, Ken Suitou, Takuya Okuno, Masakazu Murase, Koji Kawamura
  • Patent number: 5785502
    Abstract: A swash plate tiltably supported on a drive shaft is controlled by adjusting the pressure in a crank chamber. When an electromagnetic valve is de-excited, the high-pressure refrigerant gas in a discharge chamber is supplied to the crank chamber so that the inclination angle of the swash plate is shifted to its minimum inclination from its maximum inclination. An open/close mechanism located in a suction passage gradually opens or closes the suction passage in accordance with the differential pressure between the pressure in the external refrigeration circuit located upstream the open/close mechanism and the pressure in a suction chamber. When the inclination angle of the swash plate is minimized, the open/close mechanism closes the suction passage. It is therefore possible to prevent frosting while also suppressing rapid changes in load torque.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: July 28, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masaki Ota, Sokichi Hibino, Hisakazu Kobayashi, Masahiro Kawaguchi, Ken Suitou, Koji Kawamura, Takuya Okuno
  • Patent number: 5758043
    Abstract: An image processing method and apparatus which divides image information into a plurality of predetermined-sized partial images, and sequentially performs designated image processing by partial image, thus enables image processing of the read image data using a small memory capacity. In the apparatus, an image reader reads image information, in accordance with a designated reading size, and stores the read image data, as partial image data, into an image memory. Then, a designated special-effect image processing is performed on the partial image data stored in the image memory. An image output unit sequentially outputs special-effect image processed partial images.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: May 26, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Takizawa, Katsumi Masaki, Masayuki Takayama, Hiroshi Netsu, Makoto Nihei, Koji Kawamura
  • Patent number: 5741122
    Abstract: A compressor has a housing body, a drive shaft, a swash plate, and a piston. The swash plate converts rotation of the drive shaft to reciprocating movement of the piston in a cylinder bore. The piston compresses gas supplied to the cylinder bore from an external circuit via a suction chamber and discharges the compressed gas to a discharge chamber. The swash plate is tiltable with respect to a plane perpendicular to the longitudinal axis of the drive shaft according to differential pressure between the crank chamber and the suction chamber. The swash plate controls the displacement of the compressor based on the inclination thereof. A spool is movable longitudinally between a first position and a second position in response to the inclination of the swash plate. The spool connects the external circuit with the suction chamber in the first position and disconnects the external circuit from the suction chamber in the second position. The housing body has a surface slidably engaged by the spool.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: April 21, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Tomohiko Yokono, Masahiro Kawaguchi, Koji Kawamura, Shinichi Ogura, Masanori Sonobe
  • Patent number: 5713725
    Abstract: A compressor has an internal refrigerant gas passage selectively connected to and disconnected with an external refrigerant circuit separately provided from the compressor. The compressor has a reciprocable piston in a cylinder bore formed in a housing for compressing gas supplied from the external refrigerant circuit to the internal refrigerant gas passage. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with and inclining motion with respect to the drive shaft. The swash plate is movable between a maximum incline and a minimum incline. A disconnecting apparatus disconnects the internal refrigerant gas passage from the external refrigerant circuit when the swash plate is at its minimum incline. A restricting member restricts the amount of gas to be passed through the internal refrigerant gas passage in association with the disconnecting apparatus when the swash plate moves.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: February 3, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masahiro Kawaguchi, Masanori Sonobe, Ken Suitou, Shinichi Ogura, Koji Kawamura
  • Patent number: 4348903
    Abstract: First and second magnetic poles are provided, which have end surfaces brought close and in opposition to a material to be examined. These magnetic poles are magnetized by a DC exciter coil such that the magnetic poles have opposite polarities. The first magnetic pole is provided at its end surface with a pair of cumulatively connected transmitting coils, and the second magnetic pole is provided at its end surface with a pair of differentially connected receiving coils. The transmitting coils are connected to a pulser which generates a pulse current, and the receiving coils are connected to a differential amplifier. An electromagnetic ultrasonic wave generated by the transmitting coils are received by the receiving coils, amplified by the differential amplifier, and thereafter supplied to a synchroscope and an automatic detector.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: September 14, 1982
    Assignees: Nippon Steel Corporation, Hitachi, Ltd.
    Inventors: Ichiya Sato, Kazuo Miyagawa, Yukito Sasaki, Koji Kawamura, Shuichi Sato, Soji Sasaki, Jun Kubota, Susumu Itoh