Patents by Inventor Masato Kashimura

Masato Kashimura 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: 11935784
    Abstract: A vertical layer stack including a bit-line-level dielectric layer and an etch stop dielectric layer can be formed over an array region. Bit-line trenches are formed through the vertical layer stack. Bit-line-trench fill structures are formed in the bit-line trenches. Each of the bit-line-trench fill structures includes a stack of a bit line and a capping dielectric strip. At least one via-level dielectric layer can be formed over the vertical layer stack. A bit-line-contact via cavity can be formed through the at least one via-level dielectric layer and one of the capping dielectric strips. A bit-line-contact via structure formed in the bit-line-contact via cavity includes a stepped bottom surface including a top surface of one of the bit lines, a sidewall segment of the etch stop dielectric layer, and a segment of a top surface of the etch stop dielectric layer.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: March 19, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Fumitaka Amano, Yusuke Osawa, Kensuke Ishikawa, Mitsuteru Mushiga, Motoki Kawasaki, Shinsuke Yada, Masato Miyamoto, Syo Fukata, Takashi Kashimura, Shigehiro Fujino
  • Patent number: 9139609
    Abstract: A macrolide compound represented by the formula (I) effective against erythromycin resistant bacteria (for example, resistant pneumococci, streptococci and mycoplasmas).
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: September 22, 2015
    Assignees: TAISHO PHARMACEUTICAL CO., LTD., MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Tomohiro Sugimoto, Naoki Sasamoto, Jun Kurosaka, Masato Hayashi, Kanako Yamamoto, Masato Kashimura, Yasunobu Ushiki, Haruhisa Ogita, Tomoaki Miura, Kenichi Kanemoto, Kou Kumura, Satoshi Yoshida, Keiji Tamura, Eiki Shitara
  • Publication number: 20140046043
    Abstract: A macrolide compound represented by the formula (I) effective against erythromycin resistant bacteria (for example, resistant pneumococci, streptococci and mycoplasmas).
    Type: Application
    Filed: February 20, 2012
    Publication date: February 13, 2014
    Applicants: MEIJI SEIKA PHARMA CO., LTD., TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Tomohiro Sugimoto, Naoki Sasamoto, Jun Kurosaka, Masato Hayashi, Kanako Yamamoto, Masato Kashimura, Yasunobu Ushiki, Haruhisa Ogita, Tomoaki Miura, Kenichi Kanemoto, Kou Kumura, Satoshi Yoshida, Keiji Tamura, Eiki Shitara
  • Patent number: 8299035
    Abstract: A 10a-azalide compound having a 4-membered ring structure crosslinked at the 10a- and 12-positions, which is represented by the formula (I), and is effective on even Haemophilus influenzae, or erythromycin resistant bacteria (e.g., resistant pneunococci and streptococci).
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: October 30, 2012
    Assignees: Taisho Pharmaceutucal Co., Ltd., Meiji Seika Pharma Co., Ltd.
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Jun Kurosaka, Naoki Sasamoto, Masato Kashimura, Tomoaki Miura, Kenichi Kanemoto, Satoshi Yoshida, Kou Kumura, Keiichi Ajito
  • Patent number: 8293715
    Abstract: A novel 10a-azalide compound crosslinked at the 10a- and 12-positions, which is represented by the following formula, and is effective on even Hemophilus influenzae, or erythromycin resistant bacteria (e.g., resistant pneumococci and streptococci).
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 23, 2012
    Assignees: Taisho Pharmaceutical Co., Ltd., Meiji Seika Pharma Co., Ltd.
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Jun Kurosaka, Naoki Sasamoto, Masato Kashimura, Tomoaki Miura, Kenichi Kanemoto, Tomohiro Ozawa, Ken Chikauchi, Eiki Shitara
  • Patent number: 8124744
    Abstract: Compounds represented by formula (I) and the formula (IV) have an inhibitory activity of MMP-9 production, therefore, are useful as a medicine agent with fewer side effects than conventional MMP enzyme activity inhibitors, as a prophylactic and therapeutic drug for oncogenic angiogenesis, chronic rheumatoid arthritis, vascular intimal thickening after a percutaneous coronary transluminal angioplasty, vascular atherosclerosis, hemorrhagic apoplexy, acute myocardial infarction, chronic heart failure, aneurysm, lung cancer metastasis, adult respiratory distress syndrome, asthma, interstitial pulmonary fibrosis, chronic rhinosinusitis, bronchitis or chronic obstructive pulmonary disease (COPD).
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: February 28, 2012
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Masato Kashimura, Madoka Kawamura, Toshifumi Asaka, Kiyoshi Takayama, Haruhisa Ogita
  • Patent number: 8097708
    Abstract: [Object]: To provide a compound having a novel structure effective against Hemophilus influenzae and erythromycin resistant bacteria (for example, resistant pneumococci and streptococci) as well as against conventional erythromycin sensitive bacteria. [Solution]: A novel 10a-azalide compound represented by the formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof, or an intermediate for the preparation of the same. The compound of the present invention has superior antibacterial activity against Hemophilus influenzae, erythromycin resistant pneumococci and the like, and therefore, the compound can be used as a therapeutic agent of infectious diseases.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: January 17, 2012
    Assignees: Taisho Pharmaceutical Co., Ltd., Meiji Seika Kaisha, Ltd.
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Akira Manaka, Haruhisa Ogita, Jun Kurosaka, Madoka Kawamura, Masato Kashimura, Naoki Sasamoto, Tomoaki Miura, Kenichi Kanemoto, Tomohiro Ozawa, Ken Chikauchi, Eiki Shitara, Dai Kubota
  • Publication number: 20110237784
    Abstract: A novel 10a-azalide compound crosslinked at the 10a- and 12-positions, which is represented by the following formula, and is effective on even Hemophilus influenzae, or erythromycin resistant bacteria (e.g., resistant pneumococci and streptococci).
    Type: Application
    Filed: August 6, 2008
    Publication date: September 29, 2011
    Applicants: TAISHO PHARMACEUTICAL CO., LTD., MEIJI SEIKA KAISHA, LTD.
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Jun Kurosaka, Naoki Sasamoto, Masato Kashimura, Tomoaki Miura, Kenichi Kanemoto, Tomohiro Ozawa, Ken Chikauchi, Eiki Shitara
  • Publication number: 20110152239
    Abstract: The present invention relates to a process for preparing compositions of high concentrations of omega-3 fatty acids from krill. Furthermore, the invention relates to a composition comprising high concentrations of omega-3 fatty acids, and a lipid fraction from krill comprising high amounts of the fatty acids with chain length C14 and C 16.
    Type: Application
    Filed: May 15, 2009
    Publication date: June 23, 2011
    Applicants: TAISHO PHARMACEUTICAL CO., LTD., MEIJI SEIKA KAISHA, LTD.
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Jun Kurosaka, Naoki Sasamoto, Masato Kashimura, Tomoaki Miura, Kenichi Kanemoto, Satoshi Yoshida, Kou Kumura, Keiichi Ajito
  • Publication number: 20090281292
    Abstract: [Object]: To provide a compound having a novel structure effective against Hemophilus influenzae and erythromycin resistant bacteria (for example, resistant pneumococci and streptococci) as well as against conventional erythromycin sensitive bacteria. [Solution]: A novel 10a-azalide compound represented by the formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof, or an intermediate for the preparation of the same. The compound of the present invention has superior antibacterial activity against Hemophilus influenzae, erythromycin resistant pneumococci and the like, and therefore, the compound can be used as a therapeutic agent of infectious diseases.
    Type: Application
    Filed: February 7, 2007
    Publication date: November 12, 2009
    Inventors: Tomohiro Sugimoto, Kanako Yamamoto, Akira Manaka, Haruhisa Ogita, Jun Kurosaka, Madoka Kawamura, Masato Kashimura, Naoki Sasamoto, Tomoaki Miura, Kenichi Kanemoto, Tomohiro Ozawa, Ken Chikauchi, Eiki Shitara, Dai Kubota
  • Publication number: 20090076253
    Abstract: Compounds represented by formula (I) and the formula (IV) have an inhibitory activity of MMP-9 production, therefore, are useful as a medicine agent with fewer side effects than conventional MMP enzyme activity inhibitors, as a prophylactic and therapeutic drug for oncogenic angiogenesis, chronic rheumatoid arthritis, vascular intimal thickening after a percutaneous coronary transluminal angioplasty, vascular atherosclerosis, hemorrhagic apoplexy, acute myocardial infarction, chronic heart failure, aneurysm, lung cancer metastasis, adult respiratory distress syndrome, asthma, interstitial pulmonary fibrosis, chronic rhinosinusitis, bronchitis or chronic obstructive pulmonary disease (COPD).
    Type: Application
    Filed: May 1, 2007
    Publication date: March 19, 2009
    Applicant: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Masato Kashimura, Madoka Kawamura, Toshifumi Asaka, Kiyoshi Takayama, Haruhisa Ogita
  • Publication number: 20050159371
    Abstract: An efficient process for producing an 11,12-cyclic carbamate 6-O-substituted ketolide derivatives having the natural stereochemistry at the 10-position.
    Type: Application
    Filed: February 12, 2003
    Publication date: July 21, 2005
    Applicant: Taisho Pharmaceutical Co., Ltd
    Inventors: Masato Kashimura, Takeshi Kuwada
  • Patent number: 6713615
    Abstract: There is provided a preparation process useful for an efficient synthesis of 6-O-substituted ketolide derivatives by combining a characterized step of introduction of a substituent at the 6-position by selective cleavage of a C—O bond of the cyclic acetal at the 9-position side via 6,9-cyclic acetal 5-O-desosaminyl erythronolide derivative, a step of conversion into carbonyl groups at the 9- and 3-positions, and a step of 11,12-cyclic carbamation to lead to 6-O-substituted ketolide derivatives.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: March 30, 2004
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Masato Kashimura, Hiroaki Kamiyama, Takeshi Kuwada, Nobuyuki Suzuki, Takashi Adachi
  • Publication number: 20030191295
    Abstract: There is provided a preparation process useful for an efficient synthesis of 6-O-substituted ketolide derivatives by combining a characterized step of introduction of a substituent at the 6-position by selective cleavage of a C—O bond of the cyclic acetal at the 9-position side via 6,9-cyclic acetal 5-O-desosaminyl erythronolide derivative, a step of conversion into carbonyl groups at the 9- and 3-positions, and a step of 11,12-cyclic carbamation to lead to 6-O-substituted ketolide derivatives.
    Type: Application
    Filed: February 12, 2003
    Publication date: October 9, 2003
    Inventors: Masato Kashimura, Hiroaki Kamiyama, Takeshi Kuwada, Nobuyuki Suzuki, Takashi Adachi
  • Patent number: 6342590
    Abstract: Erythromycin A derivatives represented by the general formula wherein R1 is a 2-alkenyl group having 3 to 15 carbon atoms, an arylmethyl group, or an arylmethyl group substituted by 1 to 3 of a halogen atom, an alkoxy group 1 to 4 carbon atoms, a nitro group or an alkoxycarbonyl group having 2 to 6 carbon atoms, R2 is a substituted silyl group and R3 is a hydrogen atom or R2, are disclosed. These compounds are useful as intermediates of the anti-bacterial agents.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: January 29, 2002
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Shigeo Morimoto, Takashi Adachi, Tohru Matsunaga, Masato Kashimura, Yoshiaki Watanabe, Kaoru Sota
  • Patent number: 6191118
    Abstract: An erythromycin A derivative represented by Formula wherein R1 is a group represented by the formula: a group represented by the formula: (c) pyridylacetyl, (d) cycloalkylmethyl or (e) 1,2 bis-(ethoxycarbonyl)vinyl, R2 is the same group as defined for R1, hydrogen, alkyl, alkanoyl, alkoxycarbonyl, R1 and R2 together may form ═CH—R14, or R1 and R2 together with the nitrogen atom to which they are attached may form: R3 is hydrogen, alkyl or cinnamyl, R4 is hydrogen, acetyl, ethylsuccinyl or nicotinoyl, A is —OC(═O)—R17, —OC(═O)—CH2—R17, —OC(═O)—NH—R17, —O—R17 or —OC(═O)—O—R17, and R5 and R6 are each hydrogen or alkyl.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: February 20, 2001
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Toshifumi Asaka, Masato Kashimura, Akiko Matsuura, Tomohiro Sugimoto, Tetsuya Tanikawa, Takaaki Ishii
  • Patent number: 6169168
    Abstract: An erythromycin A derivative represented by the formula: wherein n is an integer of from 1 to 8, R1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 is a pyridylmethyl group, a quinolylmethyl group, a pyridylsulfonyl group or quinolylsulfonyl group, R3 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a cinnamyl group, R4 is a cladinosyloxy group or a group represented by the formula: wherein m is 0 or 1, R5 is a pyridyl group, a quinolyl group, a phenyl group, a phenyl group substituted with one, two or three members selected from alkyl groups having 1 to 6 carbon atoms, a nitro group, alkoxy groups having 1 to 3 carbon atoms and halogen atoms, or a pyridyl or quinolyl group substituted with one or two members selected from alkyl groups having 1 to 6 carbon atoms, a nitro group, alkoxy groups having 1 to 3 carbon atoms and halogen atoms; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: January 2, 2001
    Assignee: Taisho Pharmaceuticals Co., Ltd.
    Inventors: Toshifumi Asaka, Masato Kashimura, Tomohiro Sugimoto, Tetsuya Tanikawa, Takaaki Ishii, Akiko Matsuura
  • Patent number: 6165986
    Abstract: An erythromycin A derivative represented by Formula (I): ##STR1## (wherein n is an integer of 2 to 4, R.sup.1 is a pyridylmethyl group, a furylmethyl group, a thienylmethyl group, a quinolylmethyl group or a benzyl group having 1 to 3 substitutents selected from the group consisting of an alkyl group having 1 to 5 carbon atoms, a nitro group, an alkoxy group having 1 to 5 carbon atoms, an amino group and an amino group substituted by 1 or 2 alkyl groups having 1 to 5 carbon atoms, R.sup.2 is the same group as defined for R.sup.1, a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an acetyl group or a pyridylacetyl group, and R.sup.3 is an alkyl group having 1 to 5 carbon atoms or a cinnamyl group) or a pharmaceutically acceptable salt thereof has a strong antibacterial activity against not only known erythromycin-sensitive bacteria but also erythromycin-resistant bacteria and Haemophilus influenzae.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: December 26, 2000
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Toshifumi Asaka, Masato Kashimura, Akiko Matsuura, Tomohiro Sugimoto, Tetsuya Tanikawa, Takaaki Ishii
  • Patent number: 6140479
    Abstract: An erythromycin A derivative represented by Formula (I): ##STR1## wherein R is a pyridyl group, a quinolyl group, a nitrophenyl group or a methoxyphenyl group, or a pharmaceutically acceptable salt thereof has a strong antibacterial activity not only against erythromycin-sensitive bacteria but also against certain erythromycin-resistant bacteria and Haemophilus influenzae.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: October 31, 2000
    Assignee: Taisho Pharmaceuticals Co., Ltd.
    Inventors: Toshifumi Asaka, Takaaki Ishii, Tetsuya Tanikawa, Masato Kashimura
  • Patent number: RE39560
    Abstract: Erythromycin A derivatives represented by the general formula wherein R1 is a 2-alkenyl group having 3 to 15 carbon atoms, an arylmethyl group, or an arylmethyl group substituted by 1 to 3 of a halogen atom, an alkoxy group 1 to 4 carbon atoms, a nitro group or an alkoxycarbonyl group having 2 to 6 carbon atoms, R2 is a substituted silyl group and R3 is a hydrogen atom or R2, are disclosed. These compounds are useful as intermediates of the anti-bacterial agents.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: April 10, 2007
    Assignee: Taisho Pharmaceutical Company, Ltd.
    Inventors: Shigeo Morimoto, Takashi Adachi, Tohru Matsunaga, Masato Kashimura, Yoshiaki Watanabe, Kaoru Sota