Patents by Inventor Katsuyoshi Nakajima

Katsuyoshi Nakajima 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: 8410273
    Abstract: Low molecular weight compound exhibiting an osteogenesis-promoting action having the general formula (I) or a pharmacologically acceptable salt thereof:
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: April 2, 2013
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Osamu Kanno, Katsuyoshi Nakajima, Kazumasa Aoki, Ryoichi Tanaka, Shimpei Hirano, Kiyoshi Oizumi, Satoru Naito
  • Publication number: 20130029964
    Abstract: An object of the present invention is to provide a novel low molecular weight compound exhibiting an osteogenesis-promoting action. This object is achieved by a compound having the general formula (I) or a pharmacologically acceptable salt thereof. In the general formula (I), R1 and R2 represent hydrogen atoms, and the like; R3 represents a hydrogen atom, and the like; X, Y, and Z represent nitrogen atoms, and the like; A represents a phenylene group, and the like; n represents 1 or 2, and the like; and V and W represent oxygen atoms, and the like.
    Type: Application
    Filed: August 27, 2012
    Publication date: January 31, 2013
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Kazumasa Aoki, Satoshi Matsui, Kenji Yoshikawa, Hiroki Shimizu, Junko Sasaki, Katsuyoshi Nakajima, Osamu Kanno, Kiyoshi Oizumi
  • Publication number: 20120040936
    Abstract: Low molecular weight compound exhibiting an osteogenesis-promoting action having the general formula (I) or a pharmacologically acceptable salt thereof:
    Type: Application
    Filed: October 5, 2011
    Publication date: February 16, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Osamu Kanno, Katsuyoshi Nakajima, Kazumasa Aoki, Ryoichi Tanaka, Shimpei Hirano, Kiyoshi Oizumi, Satoru Naito
  • Publication number: 20110269746
    Abstract: Compounds exhibiting an osteogenesis-promoting action having the general formula (I) or a pharmacologically acceptable salt thereof: wherein A is selected from among a 3- to 10-membered heterocyclyl group, B is selected from among an amino group, and X is selected from N and CH.
    Type: Application
    Filed: July 14, 2011
    Publication date: November 3, 2011
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Osamu Kanno, Katsuyoshi Nakajima, Kazumasa Aoki, Ryoichi Tanaka, Shimpei Hirano, Kiyoshi Oizumi, Daigo Asano
  • Patent number: 7984791
    Abstract: An oil discharge structure of a baffle plate for discharging oil from a space of a gear side to a space of a transmission side with a space-saving design is provided. A slit is formed in a side face plate facing a final gear of a case side baffle plate to discharge the oil from an oil volume X in the circumference of the final gear to an oil volume Y stored in a clearance between the case side baffle plate and the transmission case, and in a clearance between the housing side baffle plate and the housing. This provides a compact structure that is not larger in a radial direction of the final gear and discharges the oil in the oil volume X.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: July 26, 2011
    Assignee: Jatco Ltd
    Inventors: Hiromi Taguchi, Hitoshi Suzuki, Katsuyoshi Nakajima
  • Publication number: 20060048600
    Abstract: An oil discharge structure of a baffle plate for discharging oil from a space of a gear side to a space of a transmission side with a space-saving design is provided. A slit is formed in a side face plate facing a final gear of a case side baffle plate to discharge the oil from an oil volume X in the circumference of the final gear to an oil volume Y stored in a clearance between the case side baffle plate and the transmission case, and in a clearance between the housing side baffle plate and the housing. This provides a compact structure that is not larger in a radial direction of the final gear and discharges the oil in the oil volume X.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 9, 2006
    Applicant: JATCO Ltd
    Inventors: Hiromi Taguchi, Hitoshi Suzuki, Katsuyoshi Nakajima
  • Patent number: 6511975
    Abstract: A compound of the formula (I) wherein R1 and R2 is a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group. A is CH2, CO or SO2. B is a single bond, alkylene or alkenylene. D is O or S. E is alkylene or alkenylene. wherein G is a substituted or unsubstituted cycloalkene ring, or a substituted cycloalkane ring. Ar is a substituted or unsubstituted aryl ring, or a substituted or unsubstituted heteroaryl ring. R3 is alkyl. n is 1-3. The invention includes a pharmacologically acceptable salt, ester or other derivative of a compound of the formula (I). The invention also provides pharmaceutical compositions and methods of treating specified diseases utilizing a compound of formula (I).
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: January 28, 2003
    Assignee: Sankyo Company, Limited
    Inventors: Takahide Nishi, Takeshi Yamaguchi, Yukiko Iio, Toshiyasu Takemoto, Katsuyoshi Nakajima
  • Patent number: 6448247
    Abstract: Compounds of the formula and quaternary ammonium ions thereof, wherein R1 and R2 are the same or different and are carbocyclic aryl or aromatic heterocyclic; A is methylene, carbonyl or sulfonyl; B is a single bond, C1-C4 alkylene or C2-C4 alkenylene; D is oxygen or sulfur; E is C2-C6 alkylene, C1-C6 haloalkylene, C3-C6 cycloalkane-1,1-diyl or C3-C6-cycloalkane-1,1-diylmethyl; G is C1-C4 alkylene or C2-C4 alkenylene; and L is —NR3 or —C(R4)(R5), wherein R3 is a carbocyclic aryl or an aromatic heterocyclic; R4 is hydrogen, carbocyclic aryl or aromatic heterocyclic; R5 is —COR6, C1-C6 alkyl, C1-C6 alkoxy, amino, or acylamino, wherein R6 is C1-C6 alkyl or C1-C6 alkoxy, or R4 and R5 together with the carbon atom to which they are attached represent a C5-C10 cycloalkyl or a C5-C10 heterocyclic. The compounds have tachykinin receptor antagonist activity and exhibit an activity against both the NK1 and NK2 receptors.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: September 10, 2002
    Assignee: Sankyo Company, Limited
    Inventors: Takahide Nishi, Koki Ishibashi, Katsuyoshi Nakajima, Tetsuya Fukazawa, Hitoshi Kurata, Takeshi Yamaguchi, Kazuhiro Ito
  • Patent number: 6166721
    Abstract: In a mouse having two click switches with buttons, a motion detector and an additional control switch mechanism for a function of scrolling are provided. The additional control switch mechanism includes a first, a second, and a third switch for producing an up-scroll signal, a down-scroll signal, and a scroll mode selection signal, respectively when being actuated. A single actuator rod having a top push button is disposed to be able to incline opposite directions to selectively actuate the first and second switches and to be pushed down to actuate the third switch. The top push button is disposed between the click switch buttons. Alternatively, the third switch with a push button thereof is disposed at a sidewall of the mouse. In another arrangement, the third switch and the push button thereof are disposed between the two click switch mechanisms, and the first switch a push button thereof and the second switch with a push button thereof are disposed in a sidewall of the mouse.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: December 26, 2000
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Kouichi Kuroiwa, Katsuyoshi Nakajima, Hiroshi Fujikake
  • Patent number: 6159967
    Abstract: Compounds of the formula and quaternary ammonium ions thereof, wherein R.sup.1 and R.sup.2 are the same or different and are carbocyclic aryl or aromatic heterocyclic; A is methylene, carbonyl or sulfonyl; B is a single bond, C.sub.1 -C.sub.4 alkylene or C.sub.2 -C.sub.4, alkenylene; D is oxygen; E is C.sub.2 alkylene; G is C.sub.1 -C.sub.4 alkylene or C.sub.2 -C.sub.4 alkenylene; and L is --C(R.sup.4)(R.sup.5), wherein R.sup.4 and R.sup.5 together with the carbon atom to which they are attached represent a C.sub.5 -C.sub.10 cycloalkyl or a C.sub.5 -C.sub.10 heterocyclic. Especially preferred are compounds wherein L represents ##STR1## wherein J is a C.sub.1 -C.sub.6 alkylene; Ar is a ring carbocyclic or aromatic heterocyclic and S*.fwdarw.O is a sulfoxide in which the sulfur atom is in the 5-configuration. The compounds have tachykinin receptor antagonist activity and exhibit an activity against both the NK.sub.1 and NK.sub.2 receptors.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: December 12, 2000
    Assignee: Sankyo Company, Limited
    Inventors: Takahide Nishi, Koki Ishibashi, Katsuyoshi Nakajima, Tetsuya Fukazawa, Hitoshi Kurata, Takeshi Yamaguchi, Kazuhiro Ito