Patents by Inventor Jun Mase
Jun Mase 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).
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Patent number: 11942506Abstract: The photosensitive region includes a first impurity region and a second impurity region having a higher impurity concentration than that of the first impurity region. The photosensitive region includes one end positioned away from the transfer section in the second direction and another end positioned closer to the transfer section in the second direction. A shape of the second impurity region in plan view is line-symmetric with respect to a center line of the photosensitive region along the second direction. A width of the second impurity region in the first direction increases in a transfer direction from the one end to the other end. An increase rate of the width of the second impurity region in each of sections, obtained by dividing the photosensitive region into n sections in the second direction, becomes gradually higher in the transfer direction. Here, n is an integer of two or more.Type: GrantFiled: July 19, 2018Date of Patent: March 26, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Mitsuhito Mase, Jun Hiramitsu, Yasuhito Yoneta, Masaharu Muramatsu
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Patent number: 9382358Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer; deactivating and decalcifying the catalyst to obtain a decalcified polymerization reaction liquid; mixing the decalcified polymerization reaction liquid containing the olefin polymer with water; and washing the liquid with stirring at a stirring intensity of 0.1 kW/m3 or more for 1 minute or longer.Type: GrantFiled: June 28, 2012Date of Patent: July 5, 2016Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
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Patent number: 9056931Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer, and diluting a polymerization reaction liquid with a solvent before or simultaneously with deactivation of the catalyst, thereby to lower the liquid viscosity of the polymerization reaction liquid to 10 mPa·s or less to promote deactivation and decalcification of the catalyst.Type: GrantFiled: June 27, 2012Date of Patent: June 16, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
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Patent number: 8816034Abstract: A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and deactivating the catalyst by a deactivator from which oxygen is removed. A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and passing the reaction solution containing the ?-olefin oligomer through a bag filter.Type: GrantFiled: January 11, 2012Date of Patent: August 26, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hideki Sato, Yushi Matsuda, Jun Kohiruimaki, Masao Aida, Kana Minamimoto, Jun Mase
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Publication number: 20140135461Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer; deactivating and decalcifying the catalyst to obtain a decalcified polymerization reaction liquid; mixing the decalcified polymerization reaction liquid containing the olefin polymer with water; and washing the liquid with stirring at a stirring intensity of 0.1 kW/m3 or more for 1 minute or longer.Type: ApplicationFiled: June 28, 2012Publication date: May 15, 2014Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
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Publication number: 20140114032Abstract: A method for producing an olefin polymer including: polymerizing one or more ?-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer, and diluting a polymerization reaction liquid with a solvent before or simultaneously with deactivation of the catalyst, thereby to lower the liquid viscosity of the polymerization reaction liquid to 10 mPa·s or less to promote deactivation and decalcification of the catalyst.Type: ApplicationFiled: June 27, 2012Publication date: April 24, 2014Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Jun Kohiruimaki, Masao Aida, Jun Mase, Kana Minamimoto
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Publication number: 20130296518Abstract: A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and deactivating the catalyst by a deactivator from which oxygen is removed. A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and passing the reaction solution containing the ?-olefin oligomer through a bag filter.Type: ApplicationFiled: January 11, 2012Publication date: November 7, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hideki Sato, Yushi Matsuda, Jun Kohiruimaki, Masao Aida, Kana Minamimoto, Jun Mase
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Publication number: 20100206770Abstract: The invention provides a hydrocarbon oil hydrorefining method, characterized by including providing a mixture of a heavy hydrocarbon oil and a hydrocarbon oil exhibiting an effect of increasing dissolved hydrogen concentration; mixing the oil mixture, which is subjected to hydrorefining, with hydrogen; and causing the resultant mixture to pass through a reactor for carrying out hydrorefining. The method can enhance performance in hydrorefining of the heavy oil.Type: ApplicationFiled: June 26, 2008Publication date: August 19, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Junshi Matsui, Jun Mase, Hiroshi Iida, Nobuyuki Ohta
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Publication number: 20090177019Abstract: Provided is a method for production of adamantane which enables producing a high-purity adamantane at low cost and with high efficiency by using effectively trimethylenenorbornane contained in a heavy raffinate heavy and having conventionally been no use other than fuels and the like, and which enables alleviating poisoning of a catalyst used in isomerization and corrosion of devices, whereby an industrially advantageous adamantane can be produced. In addition, the process for producing adamantane including an isomerization process of isomerizing trimethylenenorbornane contained in a raffinate obtained from a platfinate is characterized by including a water-washing removal process of removing sulfolane in a trimethylenenorbornane concentrate to be supplied in the isomerization process by water-washing.Type: ApplicationFiled: May 9, 2007Publication date: July 9, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masao Saito, Akio Kojima, Toshiaki Kusaba, Jun Mase
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Publication number: 20090131729Abstract: Provided is a method for production of adamantanes, in which, when a tricyclic saturated hydrocarbon compound having 10 or more carbon atoms is isomerized in the presence of a solid catalyst to give adamantanes, no solid matter derived from an oxygen-containing compound is formed or accumulated in the inlet or the bottom of an isomerization reactor by providing a pre-reactor in an isomerization step even if the oxygen-containing compound is present in a raw material to be supplied.Type: ApplicationFiled: May 2, 2007Publication date: May 21, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masao Saito, Akio Kojima, Jun Mase, Toshiaki Kusaba
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Patent number: 7393987Abstract: The present invention provides a process of an industrially advantageous production of high-purity adamantane at a low cost and with a high efficiency by isomerizing trimethylenenorbornane contained in a raffinate obtained from a platfinate.Type: GrantFiled: December 16, 2004Date of Patent: July 1, 2008Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akio Kojima, Masao Saito, Shinji Miyamoto, Jun Mase, Toyozo Fujioka
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Patent number: 7381855Abstract: An industrially advantageous process for producing adamantane by which high-purity adamantane reduced in coloration is efficiently produced while minimizing the loss. The process, which is for producing adamantane by isomerizing trimethylenenorbornane, includes (A) a reaction step of isomerizing the starting material, (B) a concentration step of concentrating the adamantane contained in the resultant liquid reaction mixture, (C) a crystallization step of precipitating the concentrated adamantane, (D) a solid-liquid separation step of separating the adamantane crystals from the slurry resulting from the crystallization, (E) a washing step of washing the isolated adamantane crystals, and (F) a drying step of drying the adamantane crystals washed, characterized in that the mass ratio of the endo-trimethylenenorbornane to the adamantane each contained in the materials to be subjected to the crystallization step (C) (endo-trimethylenenorbornane/adamantane) is 0.25 or lower.Type: GrantFiled: February 28, 2005Date of Patent: June 3, 2008Assignee: Idemitsu Kosan Co., Ltd.Inventors: Jun Mase, Shinji Miyamoto, Akio Kojima, Masao Saito, Toshiaki Kusaba
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Publication number: 20080045764Abstract: The present invention provides a method of controlling the amount of the solvent contained in adamantane purified by using a naphthene-based solvent to 0.35% by mass or less, or controlling the amount of the solvent contained in adamantane purified by using a non-naphthene-based solvent to 0.05% by mass or less and storing adamantane at 35° C. or lower. By this method, adamantane whose particles do not agglomerate together or cake and having stable quality can be obtained.Type: ApplicationFiled: July 11, 2005Publication date: February 21, 2008Applicant: Idemitsu Kosan Co., Ltd.Inventors: Jun Mase, Toshiaki Kusaba
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Publication number: 20070173678Abstract: An industrially advantageous process for producing adamantane by which high-purity adamantane reduced in coloration is efficiently produced while minimizing the loss. The process, which is for producing adamantane by isomerizing trimethylenenorbornane, includes (A) a reaction step of isomerizing the starting material, (B) a concentration step of concentrating the adamantane contained in the resultant liquid reaction mixture, (C) a crystallization step of precipitating the concentrated adamantane, (D) a solid-liquid separation step of separating the adamantane crystals from the slurry resulting from the crystallization, (E) a washing step of washing the isolated adamantane crystals, and (F) a drying step of drying the adamantane crystals washed, characterized in that the mass ratio of the endo-trimethylenenorbornane to the adamantane each contained in the materials to be subjected to the crystallization step (C) (endo-trimethylenenorbornane/adamantane) is 0.25 or lower.Type: ApplicationFiled: February 28, 2005Publication date: July 26, 2007Applicant: Idemitsu Kosan Co., LtdInventors: Jun Mase, Shinji Miyamoto, Akio Kojima, Masao Saito, Toshiaki Kusaba
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Publication number: 20070156002Abstract: The present invention provides a process of an industrially advantageous production of high-purity adamantane at a low cost and with a high efficiency by isomerizing trimethylenenorbornane contained in a raffinate obtained from a platfinate.Type: ApplicationFiled: December 16, 2004Publication date: July 5, 2007Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Akio Kojima, Masao Saito, Shinji Miyamoto, Jun Mase, Toyozo Fujioka
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Publication number: 20060111596Abstract: According to the present invention, there is provided a process for producing adamantanes by isomerizing a tricyclic saturated hydrocarbon compound having 10 or more carbon atoms, comprising (A) a reaction step for isomerizing a raw material, (B) a concentration step for concentrating the adamantanes in a reaction product liquid, (C) a crystallization step for crystallizing the concentrated adamantanes, (D) a solid-liquid separation step for separating the crystallized adamantanes from slurry having precipitated crystals, (E) a washing step for washing the crystal of adamantanes obtained by the solid-liquid separation step, and (F) a drying step for drying the washed crystals of adamantanes. According to the present invention, there is provided a process for producing adamantanes by using a solid catalyst, wherein the obtained adamantanes are purified by a crystallization operation.Type: ApplicationFiled: July 25, 2003Publication date: May 25, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Jun Mase, Shinji Miyamoto, Akio Kojima, Masao Saito
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Patent number: 6806398Abstract: The continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization zone where the elementary mercury is ionized; and a step of continuously feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment zone where the ionized mercury is converted to a solid mercury compound. The semi-continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization column where the elementary mercury is ionized; and a step of feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment tank where the ionized mercury is converted to a solid mercury compound in batch manner. With the above processes, the mercury is removed from the liquid hydrocarbon with ease in a continuous or semi-continuous manner at around ordinary temperature under around ordinary pressure.Type: GrantFiled: June 6, 2002Date of Patent: October 19, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Tsunenori Sakai, Hajime Ito, Jun Mase
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Publication number: 20020179452Abstract: The continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization zone where the elementary mercury is ionized; and a step of continuously feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment zone where the ionized mercury is converted to a solid mercury compound. The semi-continuous process for removing mercury comprises a step of continuously feeding a mercury-containing liquid hydrocarbon to an ionization column where the elementary mercury is ionized; and a step of feeding the liquid hydrocarbon containing the ionized mercury to a sulfur compound-treatment tank where the ionized mercury is converted to a solid mercury compound in batch manner. With the above processes, the mercury is removed from the liquid hydrocarbon with ease in a continuous or semi-continuous manner at around ordinary temperature under around ordinary pressure.Type: ApplicationFiled: June 6, 2002Publication date: December 5, 2002Inventors: Tsunenori Sakai, Hajime Ito, Jun Mase
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Patent number: 6268543Abstract: In a method of efficiently removing mercury from a liquid hydrocarbon, the liquid hydrocarbon is contacted with water contacted in advance with a crude oil and a sludge contacted in advance with a crude oil. Alternatively, the liquid hydrocarbon is contacted with a substance having ability of ionizing elemental mercury and a sulfur compound having the formula: MM′S, wherein M and M′ are identical or different and are each hydrogen, alkali metal or ammonium group. When the liquid hydrocarbon to be treated contains no dissolved oxygen or contains dissolved oxygen in an amount in equilibrium with a gas containing 8% by volume of oxygen, the increase in the mercury concentration of a liquid hydrocarbon after the removing treatment is effectively prevented.Type: GrantFiled: November 5, 1999Date of Patent: July 31, 2001Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Tsunenori Sakai, Hidetoshi Ono, Jun Mase, Tetsuya Saruwatari