Patents by Inventor Yuichi Yamamura

Yuichi Yamamura 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: 20190241146
    Abstract: The side airbag device includes an inflator and a side airbag that is stored in a folded state in a side portion of a seatback of a vehicle seat and is inflatable and deployable in a space between a vehicle sidewall and a side portion of an occupant. The side airbag includes an outer bag and an inner bag. The inner bag houses the inflator and is disposed at a rear portion of the outer bag along an extending direction of the seatback. The outer bag is provided with a vent hole configured to communicate with an outside. The inner bag is provided with a gas circulating hole configured to communicate with the outer bag. The gas circulating hole is disposed at a position to be blocked by the outer bag when the side airbag in an inflated and deployed state is pressed between the occupant and the vehicle sidewall.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Inventors: Shinji OKADA, Yuichi SUGIMURA, Hidetaka AZUMA, Takahiko YAMAMURA, Ichiro YOKOMI, Tetsuro HAMADA
  • Publication number: 20190143926
    Abstract: Vehicle management systems, methods and programs receive contact information indicating contact between an object and a vehicle. The contact information is detected by a sensor that detects contact between the object and the vehicle. The systems, methods, and programs obtain inspection information. The inspection information is a result of inspecting the vehicle for damage by a user of the vehicle who is notified of the contact between the object and the vehicle from having received the contact information. Inspection information transmission systems, methods, and programs, and information management systems, methods, and programs are also provided.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 16, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Yoichi YAMAMURA, Yuichi KURIWAKI, Hirokazu HIRAI
  • Patent number: 9969827
    Abstract: A process capable of producing an ethylene/?-olefin copolymer having a high molecular weight even under the conditions of a high polymerization temperature is provided. The process for producing an ethylene/?-olefin copolymer includes copolymerizing ethylene and an ?-olefin having 3 or more carbon atoms in the presence of an olefin polymerization catalyst including a crosslinked metallocene compound (A) represented by the following general formula [I] and a cocatalyst component (B). In the general formula [I], Y is selected from a carbon atom, etc., M is a hafnium atom or the like, R1 to R12 are each selected from a hydrogen atom, a hydrocarbon group, etc., R13 and R14 are each a substituted aryl group or the like, at least one of R13 and R14 is a substituted aryl group having one or more electron-donating substituents having a Hammett substituent constant ? of not more than ?0.2, Q is selected from a halogen atom, etc., and j is an integer of 1 to 4.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: May 15, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koji Endo, Mayumi Hiwara, Sadahiko Matsuura, Yoko Kosugi, Yuichi Yamamura, Yusuke Mizobuchi
  • Publication number: 20170183432
    Abstract: A process capable of producing an ethylene/?-olefin copolymer having a high molecular weight even under the conditions of a high polymerization temperature is provided. The process for producing an ethylene/?-olefin copolymer includes copolymerizing ethylene and an ?-olefin having 3 or more carbon atoms in the presence of an olefin polymerization catalyst including a crosslinked metallocene compound (A) represented by the following general formula [I] and a cocatalyst component (B). In the general formula [I], Y is selected from a carbon atom, etc., M is a hafnium atom or the like, R1 to R12 are each selected from a hydrogen atom, a hydrocarbon group, etc., R13 and R14 are each a substituted aryl group or the like, at least one of R13 and R14 is a substituted aryl group having one or more electron-donating substituents having a Hammett substituent constant ? of not more than ?0.2, Q is selected from a halogen atom, etc., and j is an integer of 1 to 4.
    Type: Application
    Filed: February 10, 2015
    Publication date: June 29, 2017
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji ENDO, Mayumi HIWARA, Sadahiko MATSUURA, Yoko KOSUGI, Yuichi YAMAMURA, Yusuke MIZOBUCHI
  • Publication number: 20160347894
    Abstract: The purpose of the present invention is to obtain an ethylene•?-olefin•non-conjugated polyene copolymer that has a low permanent compression set at low temperatures, is flexible, and has an excellent balance of rubber elasticity at low temperatures and tensile strength at normal temperatures. This ethylene-based polymer is an ethylene•?-olefin•non-conjugated polyene copolymer that includes units derived from ethylene (A), units derived from an ?-olefin (B) containing 4-20 carbon atoms, and units derived from a non-conjugated polyene (C) and satisfies (1)-(4). (1) The molar ratio of (A) to (B) is 40/60-90/10, (2) the contained amount of the units derived from (C) is 0.1-6.0 mol %, (3) ML(1+4)125° C. is 5-100, and (4) the B value is 1.20 or more.
    Type: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji ENDO, Mayumi HIWARA, Sadahiko MATSUURA, Yusuke MIZOBUCHI, Yuichi YAMAMURA, Yuji NOGUCHI, Yuji ISHII, Tatsuya SAKAI, Keisuke SHISHIDO, Kotaro ICHINO, Kiyohide INOMATA, Fumito TAKEUCHI, Kenta IDE
  • Patent number: 9382356
    Abstract: A catalyst for olefin polymerization, comprising: (A-1) a bridged metallocene compound represented by the following Formula [1-1], and (b) at least one compound selected from: (b-1) an organoaluminum oxy compound, (b-2) a compound which forms an ion pair, and (b-3) an organoaluminum compound: wherein in Formula [1-1], R1, R2, R3, R4, R5, R8, R9, and R12 are each selected from a hydrogen, a hydrocarbon group and a silicon-containing group; the four groups of R6, R7, R10, and R11 are not hydrogen atoms, and are each selected from a hydrocarbon group or a silicon-containing group; R13 and R14 are each a hydrocarbon group or the like, excluding a hydrogen atom and a methyl group; M is Ti, Zr or the like; Y is carbon or the like; Q is a halogen or the like; and j is an integer from 1 to 4.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: July 5, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yasushi Tohi, Masahiko Okamoto, Ryoji Mori, Tatsuya Nakamura, Takashi Yukita, Takashi Nakagawa, Miyuki Konno, Yuichi Yamamura, Shiegenobu Ikenaga, Mayumi Hiwara, Naritoshi Hirota, Hiromasa Marubayashi, Kouji Nagahashi, Shiro Otsuzuki, Tomohiro Yamaguchi, Masashi Higuchi, Yasuo Ichiki, Takayuki Kajihara
  • Patent number: 7834204
    Abstract: Provided is a transition metal compound represented by the general formula [III]: wherein R23, R24, R25, R26, R27, and R28 are each independently selected from hydrogen, a hydrocarbon group, a silicon-containing group, a sulfur-containing group, an oxygen-containing group, a nitrogen-containing group, and a halogen-containing group, adjacent substituents of R23 to R28 are optionally bonded to each other to form a ring, M is a Group 4 transition metal, Y is carbon atom, Q is selected from halogen, a hydrocarbon group, an anionic ligand and a neutral ligand capable of coordinating with a lone electron pair, which is selected in the same combination or different combination, j is an integer of 1 to 4, and Z is a fluorenylidene group comprising a fluorene derivative formula [I] or formula [II]
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: November 16, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Munehito Funaya, Koji Endo, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai
  • Publication number: 20100190941
    Abstract: Provided is a transition metal compound novel and useful as a catalyst component for olefin polymerization, a catalyst for olefin polymerization containing the transition metal compound, and a process for producing an olefin polymer using the catalyst for polymerization. The transition metal is characterized by being represented by the following general formula [I]: wherein, R3 is hydrogen, R2 is selected from a hydrocarbon group or a silicon-containing group, R1 and R4 are selected from a hydrocarbon group having 2 to 20 carbon atoms and a silicon-containing group, each of R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14, which is selected from hydrogen, a hydrocarbon group and a silicon-containing group, may be same or different from each other, and adjacent groups from R5 to R14 may be bonded to each other to form a ring.
    Type: Application
    Filed: April 2, 2010
    Publication date: July 29, 2010
    Inventors: Munehito Funaya, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai
  • Publication number: 20090253876
    Abstract: Provided is a novel fluorene derivative which is useful as a catalyst component for olefin polymerization, a transition metal compound containing the fluorene derivative as a part of ligand, a catalyst for olefin polymerization containing the transition metal compound, and a process for producing olefin polymer.
    Type: Application
    Filed: May 24, 2006
    Publication date: October 8, 2009
    Inventors: Munehito Funaya, Koji Endo, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai
  • Publication number: 20090043057
    Abstract: Provided is a transition metal compound novel and useful as a catalyst component for olefin polymerization, a catalyst for olefin polymerization containing the transition metal compound, and a process for producing an olefin polymer using the catalyst for polymerization. The transition metal is characterized by being represented by the following general formula [I]: wherein, R3 is hydrogen, R2 is selected from a hydrocarbon group or a silicon-containing group, R1 and R4 are selected from a hydrocarbon group having 2 to 20 carbon atoms and a silicon-containing group, each of R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14, which is selected from hydrogen, a hydrocarbon group and a silicon-containing group, may be same or different from each other, and adjacent groups from R5 to R14 may be bonded to each other to form a ring.
    Type: Application
    Filed: May 24, 2006
    Publication date: February 12, 2009
    Inventors: Munehito Funaya, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai
  • Publication number: 20080220193
    Abstract: A catalyst for olefin polymerization, comprising: (A-1) a bridged metallocene compound represented by the following Formula [1-1], and (b) at least one compound selected from: (b-1) an organoaluminum oxy compound, (b-2) a compound which forms an ion pair, and (b-3) an organoaluminum compound: wherein in Formula [1-1], R1, R2, R3, R4, R5, R8, R9, and R12 are each selected from a hydrogen, a hydrocarbon group and a silicon-containing group; the four groups of R6, R7, R10, and R11 are not hydrogen atoms, and are each selected from a hydrocarbon group or a silicon-containing group; R13 and R14 are each a hydrocarbon group or the like, excluding a hydrogen atom and a methyl group; M is Ti, Zr or the like; Y is carbon or the like; Q is a halogen or the like; and j is an integer from 1
    Type: Application
    Filed: November 16, 2007
    Publication date: September 11, 2008
    Inventors: Yasushi Tohi, Masahiko Okamoto, Ryoji Mori, Tatsuya Nakamura, Takashi Yukita, Takashi Nakagawa, Miyuki Konno, Yuichi Yamamura, Shigenobu Ikenaga, Mayumi Hiwara, Naritoshi Hirota, Hiromasa Marubayashi, Kouji Nagahashi, Shiro Otsuzuki, Tomohiro Yamaguchi, Masashi Higuchi, Yasuo Ichiki, Takayuki Kajihara
  • Patent number: 7393965
    Abstract: The bridged metallocene compound or the olefin polymerization catalyst which comprises the compound, enables high polymerization activity in polymerizing one or more monomers selected from ethylene and ?-olefins. The bridged metallocene compound contains specific substituted cyclopentadienyl and fluorenyl groups which are linked via carbon or silicon atoms. In the method for the preparation of polyolefins, one or more monomers, preferably ethylene as an essential monomer, selected from ethylene and ?-olefins are copolymerized in the presence of the olefin polymerization catalyst comprising the bridged metallocene compound, so that an ethylene based polymer with an ethylene content of more than 50 mol % is obtained.
    Type: Grant
    Filed: February 17, 2003
    Date of Patent: July 1, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasushi Tohi, Koji Endo, Hiromu Kaneyoshi, Naomi Urakawa, Yuichi Yamamura, Koji Kawai
  • Publication number: 20080038498
    Abstract: A propylene polymer which is constituted of 10 to 40 wt % room-temperature n-decane soluble part (Dsol) and 60 to 90 wt % room-temperature n-decane insoluble part (Dinsol), comprises skeletons derived from propylene (MP) and at least one kind of olefin (MX) selected from ethylene and C4 or more ?-olefins, and satisfies all of the following requirements [1] to [5]. The polymer is characterized by having a high melting point and a high molecular weight and is suitable for use in producing various moldings therefrom. [1] the molecular weight distribution (Mw/Mn) of both Dsol and Dinsol as determined by GPC is 4.0 or less; [2] the melting point (Tm) of Dinsol is 156° C. or more; [3] the sum of the 2,1-bond content and the 1,3-bond content in Dinsol is 0.05 mol % or less; [4] the intrinsic viscosity [?] (dl/g) of Dsol satisfies the relationship 2.2<[?]?6.0; and [5] the concentration of skeletons derived from the olefin (MX) in Dinsol is 3.0 wt % or less.
    Type: Application
    Filed: December 22, 2005
    Publication date: February 14, 2008
    Inventors: Keita Itakura, Munehito Funaya, Ayako Kadosaka, Naritoshi Hirota, Hiroshi Nishikawa, Yuichi Yamamura, Shuji Matsumura, Satoshi Hashizume, Yoshio Sasaki
  • Publication number: 20060161013
    Abstract: The bridged metallocene compound or the olefin polymerization catalyst which comprises the compound, enables high polymerization activity in polymerizing one or more monomers selected from ethylene and ?-olefins. The bridged metallocene compound contains specific substituted cyclopentadienyl and fluorenyl groups which are linked via carbon or silicon atoms. In the method for the preparation of polyolefins, one or more monomers, preferably ethylene as an essential monomer, selected from ethylene and ?-olefins are copolymerized in the presence of the olefin polymerization catalyst comprising the bridged metallocene compound, so that an ethylene based polymer with an ethylene content of more than 50 mol % is obtained.
    Type: Application
    Filed: February 17, 2003
    Publication date: July 20, 2006
    Inventors: Yasushi Tohi, Koji Endo, Hiromu Kaneyoshi, Naomi Urakawa, Yuichi Yamamura, Koji Kawai
  • Patent number: 4675291
    Abstract: This invention provides a novel cultured cell line which is derived from human T leukemic cells and which produces a colony-stimulating factor (CSF). This invention also provides a process for preparing such human cultured cell line, and a process of producing a CSF from such cell line.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: June 23, 1987
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yuichi Yamamura, Tadamitsu Kishimoto, Satoru Nakai, Yoshikatsu Hirai
  • Patent number: 4606857
    Abstract: Muramyldipeptide derivatives represented by the formula: ##STR1## wherein Ala represents alanine; Acyl represents an acyl group; R.sub.1 and R.sub.2 each represents a hydrogen atom or, when taken together, may form an alkylidene group; R.sub.3 represents a hydrogen atom, an acyl group or an alkyl group; and R.sub.4 represents a hydrogen atom or an alkyl group. These compounds have excellent immunoadjuvant activity, prophylactic and therapeutic effects against microbial infections, and antitumor activity.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: August 19, 1986
    Assignee: Daiichi Seiyaku Co., Ltd.
    Inventors: Akira Hasegawa, Ichiro Azuma, Yuichi Yamamura
  • Patent number: 4544632
    Abstract: This invention provides a human parental T cell line which can fuse with normal human T cells, and hybrid cell lines which are prepared by fusion of the human parental T cells and the human T cells, and which are capable of producing lymphokines. This invention also provides methods of obtaining such human T cell lines, and a method of producing lymphokines from such hybrid cell lines.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: October 1, 1985
    Inventors: Yuichi Yamamura, Tadamitsu Kishimoto
  • Patent number: 4543253
    Abstract: A stable, storable pharmaceutical composition is provided which comprises a dehydrated solid mixture of microbial cell wall skeleton, vehicle oil, suspending agent and dispersing agent; wherein said microbial cell wall skeleton has adjuvant and antitumor activity. The composition is easily prepared, stable to long term storage, and easily reconstituted to form a homogeneous suspension which retains high potency.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: September 24, 1985
    Inventors: Yuichi Yamamura, Ichiro Azuma, Katsusuke Ennyu, Osamu Aoki
  • Patent number: 4382080
    Abstract: A method for treating and preventing bacterial infections which comprises administering a 6-O-acylmuramyl depeptide of the formula: ##STR1## wherein X represents a divalent residual group of an amino acid such as L-alanine, L-serine, L-valine, etc., Y represents a residual group of a middle to higher fatty acid having 10 to 60 carbon atoms and isoGln represents a residual group of isoglutamine, or a pharmaceutical composition containing a 6-O-acylmuramyl dipeptide of the formula(I) as an active ingredient to a patient afflicted therewith.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: May 3, 1983
    Assignee: Daiichi Seiyaku Co., Ltd.
    Inventors: Tetsuo Shiba, Yuichi Yamamura, Shozo Kotani, Osamu Nagase, Hidemasa Ogawa
  • Patent number: 4369178
    Abstract: Novel glucosamine-peptide derivatives of the formula: ##STR1## wherein m is 0 or 1;n is 0 or an integer of 1 to 9;R is lower alkyl which may be substituted with hydroxyl, or aryl;R.sup.1 is hydrogen or acyl having an acyclic hydrocarbon group, the terminal of which may be substituted with a cyclic hydrocarbon group directly, via a carbonyl group or via an oxygen atom;provided that when R.sup.1 is hydrogen m is 1;R.sup.2 is hydrogen or lower alkyl which may form a ring by connecting its terminal with the .alpha.-nitrogen atom whenn is 0, or hydrogen when n is an integer of 1 to 9;R.sup.3 is hydrogen or lower alkyl;R.sup.4 and R.sup.5 are each hydrogen or lower alkyl which may be substituted with hydroxyl or benzyloxyl;R.sup.6 is hydrogen or lower alkyl;R.sup.7 is alkyl which may be substituted with lower alkoxyl or aralkyl;R.sup.8 and R.sup.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: January 18, 1983
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yuichi Yamamura, Ichiro Azuma, Shigeru Kobayashi