Patents Assigned to Showa Shell Sekiyu K.K.
  • Publication number: 20120031458
    Abstract: The solar cell module having a preferable edge space that prevents characteristics of a solar cell such as conversion efficiency from being deteriorated without making processes complicated is provided. In a solar cell module including a substrate glass, a first layer formed on the substrate glass and a second layer formed on the first layer, the first layer is removed by a first removing means having a first energy amount to provide a first edge space in which the first layer is not formed between an end part of the first layer and an end part of the glass substrate, and the second layer is removed by a second removing means having a second energy amount to provide a second edge space in which the second layer is not formed between an end part of the second layer and the end part of the glass substrate. A width of the second edge space is larger than a width of the first edge space.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 9, 2012
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Hirofumi Nishi, Hirohisa Suzuki
  • Publication number: 20120009726
    Abstract: The solar cell module having a preferable edge space that prevents characteristics of a solar cell such as conversion efficiency from being deteriorated without making processes complicated is provided. In a method for manufacturing a solar cell module including a substrate glass, a first layer formed on the substrate glass and a second layer formed on the first layer, the method includes a step of forming a first edge space having a first width by removing the first layer and the second layer by the first width from an end part of the glass substrate and a step of forming a second edge space by removing only the second layer by a second width from the end part of the glass substrate, and the width of the second edge space is larger than the width of the first edge space.
    Type: Application
    Filed: April 16, 2010
    Publication date: January 12, 2012
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Hirofumi Nishi, Hirohisa Suzuki
  • Patent number: 8093096
    Abstract: A high-resistance buffer layer and a window layer (transparent conductive film) are successively formed by the MOCVD method to obtain the same output characteristics as in conventional film deposition by the solution deposition method and to simplify a film deposition method and apparatus. Thus, the cost of raw materials and the cost of waste treatments are reduced to attain a considerable reduction in production cost. After a metallic base electrode layer 1B and a light absorption layer 1C are formed in this order on a glass substrate 1A, a high-resistance buffer layer 1D and a window layer 1E are successively formed in this order in a multi layer arrangement on the light absorption layer 1C of the resultant semifinished solar cell substrate by the MOCVD method. Consequently, a film deposition method and apparatus are simplified and the cost of raw materials and the cost of waste treatments can be reduced.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: January 10, 2012
    Assignee: Showa Shell Sekiyu K.K.
    Inventor: Katsumi Kushiya
  • Patent number: 7989256
    Abstract: In order to manufacture a CIS-based thin film solar cell that can achieve high photoelectric conversion efficiency by adding an alkali element to a light absorbing layer easily and with good controllability, a backside electrode layer (2) is formed on a substrate (1). Then, a p-type CIS-based light absorbing layer (3) is formed on backside electrode layer (2), and then an n-type transparent and electroconductive film (5) is formed on this p-type CIS-based light absorbing layer (3). At this time, the backside electrode layer (2) is constituted by forming a first electrode layer (21) using a backside electrode material in which an alkali metal is mixed and, then forming a second electrode layer (22) using the backside electrode material that does not substantially contain the alkali metal.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: August 2, 2011
    Assignee: Showa Shell Sekiyu K.K.
    Inventors: Hideki Hakuma, Yoshiaki Tanaka, Satoru Kuriyagawa
  • Patent number: 7977139
    Abstract: Before a buffer layer deposition step P5, a pre-rinse step P4 is provided to remove deposits deposited on the surface of a CIS-based light absorbing layer 3D. Thus, the disturbing factors of the formation reaction of the buffer layer are removed, thereby to improve the coverage of the buffer layer, and to hold the transparency thereof. In addition, a rinse step P6 is provided after the step P5. Thus, the colloidal solid matter remaining on the buffer layer surface is cleaned and removed with a rinse solution, thereby to hold the high resistivity. The rinse solution from a second rinse tank of the step P6 is re-used. After the step P6, a draining/drying step P7 is provided. After drying, an n-type window layer (transparent conductive film) is deposited.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: July 12, 2011
    Assignee: Showa Shell Sekiyu K.K.
    Inventors: Katsumi Kushiya, Yousuke Fujiwara
  • Patent number: 7960642
    Abstract: A photovoltaic module having long-term durability is obtained at low cost. A CIS based thin-film photovoltaic module 1 is obtained by bonding a cover glass 4 comprising, e.g., a semi-tempered white flat glass, which is inexpensive and durable, to a CIS based thin-film photovoltaic circuit 2 on a glass substrate 2A with a thermally crosslinked ethylene vinyl acetate (hereinafter referred to as EVA) resin film 3 (or sheet) as an adhesive. Use of the EVA resin film 3 reduces the amount of an EVA resin to be used. In the crosslinking, a gas generating from the EVA resin film is removed by vacuum suction to prevent bubble generation or inclusion, etc. A high-capacity storage capacitor 9 is disposed on that side of the glass substrate which is opposite to the circuit side to store the electricity optically generated by the circuit.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: June 14, 2011
    Assignee: Showa Shell Sekiyu K.K.
    Inventors: Katsumi Kushiya, Norimasa Akema, Manabu Tanaka
  • Publication number: 20110067755
    Abstract: A method of manufacturing a CIS-based thin film solar cell that achieves high photoelectric conversion efficiency comprises: forming a backside electrode layer on a substrate; forming a p-type CIS-based light absorbing layer thereon; and further forming an n-type transparent and electrically conductive film. The above-mentioned forming a p-type CIS-based light absorbing layer comprises: forming a metal precursor film (30a) at least comprising a first metal layer (31, 32) containing a I group element and a second metal layer (33) containing a III group element; and selenizing and/or sulfurizing the metal precursor film, and the above-mentioned forming the metal precursor film includes forming either one of the first metal layer (31, 32) or the second metal layer (33) of at least two layers including a layer (31) that contains an alkali metal and a layer (32) that substantially does not contain the alkali metal.
    Type: Application
    Filed: May 19, 2009
    Publication date: March 24, 2011
    Applicant: Showa Shell Sekiyu K.K.
    Inventors: Hideki Hakuma, Yoshiaki Tanaka, Satoru Kuriyagawa
  • Publication number: 20100311202
    Abstract: A treatment object containing any one of Cu/Ga, Cu/In and Cu—Ga/In is held in a heated state at a temperature T1 for a time ?t1 in such a state that a selenium source is introduced, thereby forming a selenide. Thereafter, a sulfur source is introduced to replace the atmosphere in the system with a sulfur atmosphere. In this state, the treatment object is held in a heated state at a temperature T2 for a time ?t2. The temperature of the treatment object is then decreased to T3, and, at that temperature, the treatment object is held in a heated state for a time ?t3.
    Type: Application
    Filed: November 28, 2008
    Publication date: December 9, 2010
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Hideki Hakuma, Yuri Yamaguchi, Katsuya Tabuchi, Katsumi Kushiya
  • Patent number: 7799212
    Abstract: A method which controls sedimentation occurring at a heat exchanger for cooling hydrodesulfurization/hydrocracking residue containing asphaltenes at a high content and thereby prevents fouling of the heat exchanger is disclosed. A method for preventing fouling of a heat exchanger for cooling hydrodesulfurization/hydrocracking residue, which injects flux oil into hydrodesulfurization/hydrocracking residue containing asphaltenes at 1% by mass or more, wherein the flux oil is at least one species of residue selected from the group consisting of crude vacuum distillation residue and fluidized catalytic cracking residue, and injected into the hydrodesulfurization/hydrocracking residue to control its actual sediment content at 0.2% by mass or less, determined in accordance with IP-375 is also disclosed.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: September 21, 2010
    Assignees: Tonen General Sekiyu K.K., Showa Shell Sekiyu K.K., Research Association of Refinery Integration for Group Operation
    Inventors: Norihiro Nakashima, Masayoshi Kuwbara, Manabu Higo, Hiroyuki Kobayashi
  • Publication number: 20100210064
    Abstract: In order to manufacture a CIS-based thin film solar cell that can achieve high photoelectric conversion efficiency by adding an alkali element to a light absorbing layer easily and with good controllability, a backside electrode layer (2) is formed on a substrate (1). Then, a p-type CIS-based light absorbing layer (3) is formed on backside electrode layer (2), and then an n-type transparent and electroconductive film (5) is formed on this p-type CIS-based light absorbing layer (3). At this time, the backside electrode layer (2) is constituted by forming a first electrode layer (21) using a backside electrode material in which an alkali metal is mixed and, then forming a second electrode layer (22) using the backside electrode material that does not substantially contain the alkali metal.
    Type: Application
    Filed: May 18, 2009
    Publication date: August 19, 2010
    Applicant: Showa Shell Sekiyu K.K.
    Inventors: Hideki Hakuma, Yoshiaki Tanaka, Satoru Kuriyagawa
  • Publication number: 20100126581
    Abstract: There are provided a frameless solar cell module and a manufacturing method thereof, in which the frameless solar cell module includes a sub-module including a substrate glass, a thin-film solar cell device formed on the substrate glass, a cover glass attached to a light receiving surface side of the thin-film solar cell device, and a filler for adhering and holding the substrate glass and the cover glass, and is characterized in that lamination surfaces at side ends of the sub-module are sealed with a metal sealing material.
    Type: Application
    Filed: May 2, 2008
    Publication date: May 27, 2010
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Hirofumi Nishi, Hirohisa Suzuki, Katsumi Kushiya
  • Publication number: 20100105590
    Abstract: The present invention provides a lubricating oil composition comprising a base oil, an aspartic acid derivative and an aliphatic amine compound. The lubricating oil composition is ideal as an industrial lubricating oil such as for example for a hydraulic working oil in hydraulic equipment. Primary amine, secondary amine, diamine, and/or tertiary amines may be employed for the aliphatic amine compound.
    Type: Application
    Filed: February 6, 2008
    Publication date: April 29, 2010
    Applicant: Showa Shell Sekiyu K.K.
    Inventors: Mitsuhiro Nagakari, Hiroshi Kaneko, Yoshiharu Baba
  • Publication number: 20100093576
    Abstract: The present invention provides a lubricating oil composition comprising a metal dithiophosphate and a poly(meth)acrylate containing a polar hydroxyl group in a base oil.
    Type: Application
    Filed: November 1, 2007
    Publication date: April 15, 2010
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Ryuji Maruyama, Eiji Nagatomi, Tetsuo Wakizono
  • Publication number: 20100037945
    Abstract: The electrode parts of a solar cell module which differ in color form other parts of the module are hidden without increasing the number of module assembly/production steps to thereby enable the whole CIS based thin-film solar cell module to have an even color throughout and hence an improved appearance. A solar cell module 1 having a beautiful appearance is provided which includes a submodule 3 having the same color as electrode parts 3A of the submodule. A black ceramic layer 7 having almost the same color as the submodule 3 is formed on the back side (lower side) of peripheral edge parts of a cover glass 4. The silver-white electrode parts 3A formed in peripheral areas of the submodule 3 are hidden by the black ceramic layer 7, whereby the whole module 1 has an even color throughout and has an improved appearance. For a baking operation for forming the black ceramic layer 7, the heating performed when the cover glass 4 is produced through tempering by a heat treatment may be utilized.
    Type: Application
    Filed: September 26, 2007
    Publication date: February 18, 2010
    Applicant: SHOWA SHELL SEKIYU K. K.
    Inventors: Mayuki Tsunoda, Kenichi Tazawa, Hirohisa Suzuki
  • Publication number: 20100009878
    Abstract: The present invention aims to provide a lubricating oil composition capable of use in for example the bearings of a high-speed main shaft having ceramics ball antifrication bearings operating under severe conditions of high speed and high load. To this end the present invention provides a lubricating oil composition, in particular for lubrication of ceramics, comprising a base oil; and at least one additive selected from the group consisting of: (i) an acid amide obtainable by reacting an amine with a saturated monocarboxylic acid having from 12 to 30 carbons or an unsaturated monocarboxylic acid having from 18 to 24 carbons; (ii) sarcosinic acid; and (iii) an aspartic acid derivative.
    Type: Application
    Filed: January 23, 2008
    Publication date: January 14, 2010
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Yoshiharu Baba, Toru Ikai
  • Publication number: 20090318320
    Abstract: The present invention involves the addition of an aspartic acid derivative and a fatty acid ester of a polyhydric alcohol to a base oil of, e.g., mineral oil or synthetic oil type. By including these additives, a lubricating oil composition having excellent rust-preventing properties, reduced friction coefficient and excellent energy-saving properties and so being suitable for industrial lubricating oils can be obtained. Also, by further adding an epoxy compound and by adding also a fatty acid amine, it is possible to obtain a lubricating oil composition even more endowed with rust-preventing properties and energy-saving properties.
    Type: Application
    Filed: September 11, 2007
    Publication date: December 24, 2009
    Applicant: Showa Shell Sekiyu K.K.
    Inventors: Hiroshi Kaneko, Yoshiharu Baba, Mitsuhiro Nagakari, Hirohiko Otsu, Masayoshi Osawa
  • Publication number: 20090305920
    Abstract: The present invention aims to offer a lubricating composition with excellent heat resistance, mechanical stability, water resistance, corrosion resistance, load resistance and flame resistance. To this end the present invention suggests that from 2 to 68% by weight of tricalcium phosphate relative to the total composition is added to a base oil, which may be a mineral oil and/or a synthetic oil. Surfactants are further added, and the whole is thoroughly mixed and kneaded to give a semi-solid lubricating composition. For the surfactants, non-ionic surfactants are most suitable, and fatty acid esters such as glycerine fatty acid esters, sorbitan fatty acid esters and sucrose fatty acid esters may be used. The amount used is from 0.2 to 18% by weight relative to the total composition.
    Type: Application
    Filed: November 29, 2007
    Publication date: December 10, 2009
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventors: Tetsuya Kato, Koichi Numazawa, Takahiro Ozaki
  • Patent number: 7629301
    Abstract: A grease composition is provided containing (a) a base oil; (b) a urea-based thickening agent; (c) at least one compound selected from the group of (i) a molybdenum dithiocarbamate, (ii) a zinc dithiocarbamate, (iii) a molybdenum dithiophosphate, and/or (iv) a zinc dithiophosphate; and (d) a metal salt of a fatty acid.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: December 8, 2009
    Assignee: Showa Shell Sekiyu K.K.
    Inventors: Kazushige Ohmura, Noriaki Shinoda, Keiji Tanaka
  • Publication number: 20090283131
    Abstract: A problem of the invention is to prevent a substrate from being damaged with a metal stylus upon mechanical patterning.
    Type: Application
    Filed: July 24, 2009
    Publication date: November 19, 2009
    Applicant: SHOWA SHELL SEKIYU, K.K.
    Inventors: Katsumi KUSHIYA, Muneyori TACHIYUKI
  • Publication number: 20090203194
    Abstract: Raw materials are economized and a film deposition rate is improved while maintaining film evenness and high film quality. A film deposition apparatus for the continuous formation of a multilayered transparent conductive film is provided which comprises a substrate attachment part, a charging part where evacuation is conducted, a multilayer deposition treatment part comprising two or more deposition treatment parts for forming a transparent conductive film on a substrate by the MOCVD method by reacting an organometallic compound (diethylzinc), diborane, and water in a vapor phase, a substrate takeout part, a substrate detachment part, and a setter return part where the substrate setter is returned to the substrate attachment part. Film deposition is successively conducted while moving a substrate sequentially through the parts to form a multilayered transparent conductive film on the substrate.
    Type: Application
    Filed: January 20, 2006
    Publication date: August 13, 2009
    Applicant: SHOWA SHELL SEKIYU K.K.
    Inventor: Yoshiaki Tanaka