Patents by Inventor Susumu Nakajima

Susumu 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: 6822539
    Abstract: The dielectric resonance device according to the present invention is constructed such that there are provided a column-shaped dielectric resonator and a column-shaped pedestal bonded to the undersurface of the dielectric resonator with the adhesive, for supporting the dielectric resonator, that on the joint surface between the pedestal and the dielectric resonator, there is provided an adhesive collecting recess so as not to reach a side of the pedestal, and that the joint surface and the undersurface of the dielectric resonator are bonded to each other with the adhesive. Therefore, the recess serves as a place for collecting the adhesive so that the adhesive which is squeezed out from between the joint surface and the undersurface of the dielectric resonator can be eliminated, making it possible to provide a dielectric resonance device with stabilized electric performance.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: November 23, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Shuji Saito, Yasuo Yamaki, Susumu Nakajima, Masahiko Nakatsugawa
  • Patent number: 6746663
    Abstract: The present invention provides the porphyrin compound which is used for photodynamic diagnosis and/or treatment for animals, and the photodynamic diagnostic and/or therapeutic agent for animals.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 8, 2004
    Assignee: Photochemical Co., Ltd.
    Inventors: Isao Sakata, Susumu Nakajima, Yoshinori Nakae
  • Publication number: 20030098763
    Abstract: The dielectric resonance device according to the present invention is constructed such that there are provided a column-shaped dielectric resonator and a column-shaped pedestal bonded to the undersurface of the dielectric resonator with the adhesive, for supporting the dielectric resonator, that on the joint surface between the pedestal and the dielectric resonator, there is provided an adhesive collecting recess so as not to reach a side of the pedestal, and that the joint surface and the undersurface of the dielectric resonator are bonded to each other with the adhesive. Therefore, the recess serves as a place for collecting the adhesive so that the adhesive which is squeezed out from between the joint surface and the undersurface of the dielectric resonator can be eliminated, making it possible to provide a dielectric resonance device with stabilized electric performance.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 29, 2003
    Applicant: Alps Electric Co., Ltd.
    Inventors: Shuji Saito, Yasuo Yamaki, Susumu Nakajima, Masahiko Nakatsugawa
  • Patent number: 6548045
    Abstract: The present invention provides the porphyrin compound having nitroimidazole in the molecule, which is used for diagnosis and/or treatment of cancer in magnetic resonance imaging (MRI) and/or radiotherapy as well as for DDS therapy. The porphyrin compound of the present invention shows no phototoxicity, and represented by the following formula: [wherein, R1 and R2 are —CH═CH2 or —CH(CH3)—OH, —CH(CH3)—O—(CH2)n—NH—Ra; R3 is hydrogen atom or —CO—(CH2)m—COOH; and M is transition metal of Mn, Fe, Co or Cu], (in which, Ra is hydrogen atom or the group represented by the following formula: n and m are the integer 2 or 3), or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 15, 2003
    Assignee: Photochemical Co., Ltd.
    Inventors: Isao Sakata, Susumu Nakajima, Yoshinori Nakae
  • Publication number: 20030017112
    Abstract: The present invention provides the porphyrin compound which is used for photodynamic diagnosis and/or treatment for animals, and the photodynamic diagnostic and/or therapeutic agent for animals.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Inventors: Isao Sakata, Susumu Nakajima, Yoshinori Nakae
  • Publication number: 20020177704
    Abstract: The present invention provides the porphyrin compound having nitroimidazole in the molecule, which is used for diagnosis and/or treatment of cancer in magnetic resonance imaging (MRI) and/or radiotherapy as well as for DDS therapy.
    Type: Application
    Filed: July 20, 2001
    Publication date: November 28, 2002
    Inventors: Isao Sakata, Susumu Nakajima, Yoshinori Nakae
  • Patent number: 6358487
    Abstract: A carbon black having an average particle size of at most 13 nm, Dmod of at most 80 nm, a D½/Dmod ratio of at most 0.6 and at least pH 5.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 19, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshihiro Omae, Nobutake Mise, Yutaka Fukuyama, Yuuichi Sekine, Takaharu Yamamoto, Hiroaki Takehara, Tsuyoshi Yamaguchi, Susumu Nakajima, Masanobu Ishida, Mamoru Nakayama, Hiroshi Maeda
  • Patent number: 6298698
    Abstract: In a door-mounted button lock a stored condition or a non-stored condition is selected by rotating button bodies inserted in a case frame. A screwdriver notch 56 is slotted in one end of a button body 54 for optionally selecting the stored or non-stored condition; a lock flange 57 holds each button body in a locked condition when depressed; upper and lower fan-shaped stopper flanges 60 and 60′ have different phases in a 180° peripheral direction; a shank 55′ having a square cross section is integrally formed for sliding relative to a slide notch 37 of a key plate 40; and the lever handle can be rotated relative to the rotation shaft 77 via a snap washer 84 to prevent extraction. The stored or non-stored condition can be optionally selected in accordance with the button keyword by rotating the screwdriver notch 180°. The key plate can slide over a wide range of rotation angles of an engagement portion for permitting the key plate to slide to decreased wear.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: October 9, 2001
    Assignee: Co Kabushikikaisha Nagasawa Seisakusho
    Inventors: Susumu Nakajima, Koichi Takahashi
  • Patent number: 6095114
    Abstract: A gasoline direct-injection engine includes a cavity provided in a top portion of a piston and constituting a portion of a combustion chamber defined between a cylinder head and the top portion of the piston, a fuel injection valve mounted in the cylinder head for injecting gasoline directly into the combustion chamber, and a spark plug also mounted in the cylinder head to face the combustion chamber. In this gasoline direct-injection engine, the fuel injection valve facing a substantially central portion of a ceiling surface of the combustion chamber is mounted in the cylinder head to have an axis substantially parallel to an axis of the piston, and the cavity provided in the top portion of the piston and disposed below the fuel injection valve and the spark plug is defined so that it is deeper in an area corresponding to the spark plug than in an area corresponding to the fuel injection valve.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: August 1, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kaoru Horie, Masaki Takayama, Hitoshi Takahashi, Hiromi Matsuura, Susumu Nakajima, Naoaki Takeda, Mitsuharu Imaseki
  • Patent number: 6063777
    Abstract: The present invention provides an iminochlorin aspartic acid derivative represented by the following formula (I): ##STR1## Wherein Asp represents an aspartic acid residue, or a pharmaceutically acceptable salt thereof. The compound of the present invention is useful as a photosensitizer for photophysico-chemical diagnosis and therapy of cancer, because it has a high accumulability to cancerous cells, reactivity to external energy and a cancerous cell destroying effect which is effective even against cancers developing in deep site, while it is rapidly excreted from normal cells and therefore causes no damage thereto.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: May 16, 2000
    Assignees: Wyeth Lederle Japan, Ltd., Photochemical Co., Ltd.
    Inventors: Muneo Hikida, Masahiko Mori, Isao Sakata, Susumu Nakajima, Hiroyuki Takata
  • Patent number: 5735248
    Abstract: A fuel injection method wherein optimum fuel injection timing in a fuel-injection type gas fuel engine is determined by setting fuel injection end timing to be after the start of opening of an intake valve. That is, when injection ends in a first half of the intake valve open period the volumetric efficiency .eta.v falls and the engine output also falls, because the injection period overlaps with a period of positive pressure arising inside the intake pipe before opening of the intake valve, but when injection ends in a second half of the intake valve open period the volumetric efficiency .eta.v rises and the engine efficiency also rises, because the injection period overlaps with a period of negative pressure arising in the intake pipe during the first half of the intake value open period. Consequently, when fuel is injected during this trough in the intake port pressure, the volumetric efficiency increases and the engine output also increases by several percent.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: April 7, 1998
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiromi Matsuura, Hideki Minami, Susumu Nakajima, Kazuhiro Ueda, Shigeru Aoki, Toshiyuki Nishida
  • Patent number: 5297532
    Abstract: A supercharged internal combustion engine includes an intake passage, a supercharger arranged in the intake passage, an exhaust passage, and a catalytic converter arranged in the exhaust passage. A supercharging pressure control system for the engine controls the opening of a supercharging pressure control valve for controlling supercharging pressure of intake air supplied to the engine by the supercharger. When the temperature of the catalytic converter falls outside a predetermined range, the opening of the control valve is controlled in a manner such that the temperature of the catalytic converter is brought into the predetermined range.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 29, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hidehito Ikebe, Takuya Sugino, Susumu Nakajima, Kenichiro Kinoshita, Nobu Takahashi
  • Patent number: 5236447
    Abstract: An artificial tubular organ composed of a tubular supporting frame made of a plastic material which is provided on at least one surface therefore with a medical prosthetic material. The supporting frame is composed of a plurality of ring portions arranged on an axis, and a plurality of pairs of connecting portions extending between adjacent two ring portions so as to connect them to each other, every other pair of the connecting portions being diametrically arranged on the ring portions, the remaining pairs of the connecting portions being arranged such that a plane containing their center lines is perpendicular to a plane containing the center lines of pairs of diametrically arranged connecting portions. The medical prosthetic material may be a woven fabric, a knitted fabric, a nonwoven fabric, or a combination thereof. Preferred fabric includes absorbable macromolecular yarns and nonabsorbable macromolecular yarns.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: August 17, 1993
    Assignee: Nissho Corporation
    Inventors: Yoshihiko Kubo, Takashi Arai, Susumu Nakajima, Tomiyo Maeda, Hajime Tsujikawa
  • Patent number: 4996312
    Abstract: A porphyrin compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each --CH.dbd.CH.sub.2, --CH.sub.2 CHJ.sub.3, --CH(O-lower alkanoyl)CH.sub.3, --CH(OR)CH.sub.3 or --CH(O-lower alkylene-OR)CH.sub.3 ; R.sub.3 is --H, --COOH, --COO-lower alkyl, --COO-lower alkylene-OR or --COO-lower alkylene-OOC-Z; R.sub.4 is --H, -lower alkyl or -lower alkylene-OR; R is --H, -lower alkyl or a residue of a polyfunctional carboxyl compound excluding a hydrogen atom therefrom; Z is a residue of the compound of the formula (I) excluding R.sub.3 therefrom; A is --CH.sub.2 -- or --CO--; and the dotted line from the gamma-position indicates no bonding or a single direct bond; and the dotted line between the 7- and 8-positions indicates the presence of a single bond or a double bond; and its complexes with a metal(s) in the porphine skeleton and/or at the residue of the polyfunctional carboxyl compound, at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: February 26, 1991
    Assignees: Nihon Medi-Physics Co., Ltd., Toyo Hakka Kogyo Co., Ltd.
    Inventors: Isao Sakata, Susumu Nakajima, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata, Hirohiko Yamauchi, Nobuo Ueda, Masaaki Hazue
  • Patent number: 4849207
    Abstract: A porphyrin compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each --CH.dbd.CH.sub.2, --CH.sub.2 CH.sub.3, --CH(O-lower alkanoyl)CH.sub.3, --CH(OR)CH.sub.3 or --CH(O-lower alkylene-OR)CH.sub.3 ; R.sub.3 is --H, --COOH, --COO-lower alkyl, --COO-lower alkylene-OR or --COO-lower alkylene-OOC-Z; R.sub.4 is --H, -lower alkyl or -lower alkylene-OR; R is --H, -lower alkyl or a residue of a polyfunctional carboxyl compound excluding a hydrogen atom therefrom; Z is a residue of the compound of the formula (I) excluding R.sub.3 therefrom; A is --CH.sub.2 -- or --CO--; and the dotted line from the gamma-position indicates no bonding or a single direct bond; and the dotted line between the 7- and 8-positions indicates the presence of a single bond or a double bond; and its complexes with a metal(s) in the porphine skeleton and/or at the residue of the polyfuntional carboxyl compound, at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: July 18, 1989
    Assignees: Nihon Medi-Physics Co., Ltd., Toyo Hakka Kogyo Co., Ltd.
    Inventors: Isao Sakata, Susumu Nakajima, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata, Hirohiko Yamauchi, Nobuo Ueda, Masaaki Hazue
  • Patent number: 4709022
    Abstract: Pheophorbide derivatives and alkaline salts thereof having the general formula (A): ##STR1## wherein R.sub.1 represents --CH.dbd.CH.sub.2, --CH(OH)CH.sub.3, --CH(OCH.sub.2 CH.sub.2 OH)CH.sub.3 or --CH(OCOCH.sub.3)CH.sub.3R.sub.2 represents --CH.sub.3, --CHO or --CH.sub.2 OHR.sub.3 represents .dbd.O, --OH or --OCOCH.sub.3R.sub.4 represents --H, --COOCH.sub.3, --COOCH.sub.2 CH.sub.2 OH, --COOCH.sub.2 CH.sub.2 OCOCH.sub.3, or a --CONH-- containing residue of an amino acid andR.sub.5 represents --COOH, --COONa or --COOCH.sub.3 ; provided, however, said derivatives and alkaline salts exclude pheophorbide, 9-desoxo-9-hydroxy-pheophorbide and pyropheophorbide.Dimeric pheophorbide derivatives and alkaline salts thereof represented by the general formula (B): ##STR2## wherein R.sub.1 through R.sub.5 are the same as in general formula (A), are useful for treating cancer having a strong preferential affinity for cancer cells over normal cells and exerting upon irradiation a destructive effect on such cancer cells.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: November 24, 1987
    Inventors: Isao Sakata, Susumu Nakajima, Koichi Koshimuzi, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata
  • Patent number: 4604241
    Abstract: Nine-desoxo-hydroxy-pheophorbide derivatives and alkaline salts thereof represented by the general formula: ##STR1## wherein R.sub.1 represents CH.sub.3 or CH.sub.2 OH,R.sub.2 represents H or Ac, andR.sub.3 represents H or alkali metal,are useful for treating cancer having a strong preferential affinity for cancer cells over normal cells and exerting upon irradiation a destructive effect on such cancer cells.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: August 5, 1986
    Inventors: Isao Sakata, Susumu Nakajima, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara, Hiroyuki Takata