Patents by Inventor Nobuyuki Koike
Nobuyuki Koike 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: 9279928Abstract: Provided is a retardation element, including: a transparent substrate; and a birefringent multilayer structure formed of layered structures stacked over the transparent substrate and each formed of first and second birefringent layers. In each layered structure, a relationship between average thicknesses (t1) and (t2) of the first and second birefringent layers satisfies any of formulae (1) and (2) below, and an angle (?) formed between first and second line segments representing principal axes of refractive index anisotropy of the first and second birefringent layers satisfies formula (3) below when the first and second line segments are projected on the transparent substrate such that an end A of the first line segment and an end B of the second line segment at a side of the transparent substrate coincide with each other, and condition (4) is satisfied, 0<t1/t2?1??formula (1) 0<t2/t1?1??formula (2) 90°<??180°??formula (3) t1?t2 or ??180°??condition (4).Type: GrantFiled: October 21, 2014Date of Patent: March 8, 2016Assignee: DEXERIALS CORPORATIONInventor: Nobuyuki Koike
-
Publication number: 20160054500Abstract: A phase difference compensating element that can effectively compensate polarization disturbance, and a projection-type image projecting device are provided. The phase difference compensating element includes: a birefringent layer formed with a film stack of obliquely-deposited films, each of the obliquely-deposited films having a thickness equal to or smaller than the used wavelength; and an Rd-AR film that is formed with a film stack of two or more kinds of dielectric films having different refractive indexes, and provides an arbitrary phase difference to a phase difference in obliquely-incident transmitted light in the birefringent layer. The phase difference Rd to be provided by the Rd-AR film satisfies 1<Rd(?)/Rd(??)<1.5 (?<??), at an arbitrary wavelength ? in the used wavelength band and within an incident light angle range of 0 to 25 degrees.Type: ApplicationFiled: April 9, 2014Publication date: February 25, 2016Applicant: DEXERIALS CORPORATIONInventor: Nobuyuki KOIKE
-
Publication number: 20150109557Abstract: Provided is a retardation element, including: a transparent substrate; and a birefringent multilayer structure formed of layered structures stacked over the transparent substrate and each formed of first and second birefringent layers. In each layered structure, a relationship between average thicknesses (t1) and (t2) of the first and second birefringent layers satisfies any of formulae (1) and (2) below, and an angle (?) formed between first and second line segments representing principal axes of refractive index anisotropy of the first and second birefringent layers satisfies formula (3) below when the first and second line segments are projected on the transparent substrate such that an end A of the first line segment and an end B of the second line segment at a side of the transparent substrate coincide with each other, and condition (4) is satisfied, 0<t1/t2?1 ??formula (1) 0<t2/t1?1 ??formula (2) 90°<??180°??formula (3) t1?t2 or ??180°??condition (4).Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventor: Nobuyuki Koike
-
Publication number: 20150092117Abstract: Provided is a retardation element, including: a transparent substrate; a retardation imparting antireflection layer; a first birefringent layer; and a second birefringent layer which has approximately the same average thickness as that of the first birefringent layer and contacts the first birefringent layer such that an angle formed between a first line segment representing the principal axis of refractive index anisotropy of the first birefringent layer and a second line segment representing the principal axis of refractive index anisotropy of the second birefringent layer is neither 0° nor 180° when the first line segment and the second line segment are projected on the transparent substrate such that an end A of the first line segment at a side of the transparent substrate and an end B of the second line segment at a side of the transparent substrate coincide with each other.Type: ApplicationFiled: September 23, 2014Publication date: April 2, 2015Inventors: Nobuyuki Koike, Akio Takada, Naoki Hanashima
-
Publication number: 20150080543Abstract: A thermoplastic resin has excellent heat resistance and thermal stability, low water absorption properties, excellent surface hardness and mechanical strength. A thermoplastic resin includes a constituent unit (a) that is derived from a (meth)acrylate monomer and represented by the formula (1); a constituent unit (b) that is derived from a vinyl monomer and represented by the formula (2); and a constituent unit (c) that is derived from a vinyl monomer and represented by the formula (3), and the weight percentage of the constituent unit (a), based on the total weight of the all constituent units, is 60 to 85% by weight, the weight percentage of the constituent unit (b), based on the total weight of the all constituent units, is 5 to 30% by weight, and the weight percentage of the constituent unit (c), based on the total weight of the all constituent units, is 5 to 15% by weight.Type: ApplicationFiled: April 16, 2013Publication date: March 19, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yoshio Aoki, Nobuyuki Koike
-
Publication number: 20150079368Abstract: An object of the present invention is to provide a laminate material for a transparent substrate material or protecting material, which exhibits excellent surface hardness, excellent form stability under heat or when absorbing water, and excellent adhesion to a coating composition, and excellent heat resistance under load, and which maintains excellent adhesion between the layers. The present invention is a laminate material comprising a first layer comprising a vinyl copolymer resin (A), and a second layer comprising a thermoplastic resin (B) stacked on the first layer, or comprising the first layer, the second layer, and a third layer comprising the vinyl copolymer resin (A) stacked on the second layer (the vinyl copolymer resin (A) constituting the first layer and the vinyl copolymer resin (A) constituting the third layer may be the same or different).Type: ApplicationFiled: April 16, 2013Publication date: March 19, 2015Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Nobuyuki Koike, Takashi Hanne, Yasuyuki Matsushima, Shino Mizuno
-
Patent number: 8842365Abstract: A phase difference element capable of reducing reflection of incident light and a manufacturing method for the phase difference element are disclosed. The phase difference element includes a transparent substrate 11, an interface anti-reflection film group 12 and an obliquely vapor deposited film 13. The interface anti-reflection film group is composed by one or more of alternately high and low refractive index films, with the film thicknesses of the respectively films being equal to or less than the wavelength of light in use. The obliquely vapor deposited film is formed by a plurality of layers of a dielectric material. These layers are alternately obliquely vapor deposited from two directions differing by 180° from each other. The refractive index of the interface anti-reflection film group 12 is higher than the refractive index of the transparent substrate 11 and lesser than that of the obliquely vapor deposited film 13.Type: GrantFiled: May 16, 2012Date of Patent: September 23, 2014Assignee: Dexerials CorporationInventors: Nobuyuki Koike, Masatoshi Sasaki, Naoki Hanashima, Akio Takada, Takatoshi Yamada
-
Publication number: 20140173202Abstract: An information processing apparatus includes: at least one access unit that issues a memory access request for a memory; an arbitration unit that arbitrates the memory access request issued from the access unit; a management unit that allows the access unit that is an issuance source of the memory access request according to a result of the arbitration made by the arbitration unit to perform a memory access to the memory; a processor that accesses the memory through at least one cache memory; and a timing adjusting unit that holds a process relating to the memory access request issued by the access unit for a holding time set in advance and cancels the holding of the process relating to the memory access request in a case where power of the at least one cache memory is turned off in the processor before the holding time expires.Type: ApplicationFiled: February 19, 2014Publication date: June 19, 2014Applicant: FUJITSU LIMITEDInventors: NOBUYUKI KOIKE, Toshihiro MIYAMOTO
-
Publication number: 20130183537Abstract: The invention provides a synthetic resin laminate having a thermoplastic resin (A) layer and a thermoplastic resin (B) layer provided on each side of the thermoplastic resin (A) layer, the thermoplastic resin (A) having a styrene structural unit content of 65 to 90 mol % with respect to all the structural units forming the resin, characterized in that the thermoplastic resin (B) is a (meth)acrylic acid ester-styrene copolymer resin which is predominantly formed of a (meth)acrylic acid ester structural unit (a) represented by formula (1) and a styrene structural unit, and which has a ratio by mole of (meth)acrylic acid ester structural unit (a) to styrene structural unit of 70:30 to 84:16. The synthetic resin laminate is excellent in transparency, anti-warpage property, interlayer adhesion, adhesion to a hard coat layer formed from a photosensitive hard coating material, scratch resistance, and weather resistance.Type: ApplicationFiled: August 22, 2011Publication date: July 18, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Kazuya Sato, Katsuyuki Murai, Nobuyuki Koike, Hiroki Oguro
-
Publication number: 20130177717Abstract: To produce a wavelength plate that is superior in durability and stability and has a high moisture resistant property. A dielectric material is obliquely vapor deposited on a substrate so as to form a birefringent layer that has columnar portions in each of which fine particles of the dielectric material are stacked in a columnar shape, and interstices that are respectively formed between the columnar portions, and the birefringent layer is subjected to an annealing treatment at a temperature within the range of 100° C. or more to 300° C. or less. Then, a protective film with low moisture permeability is formed on the annealed birefringent layer by forming an inorganic compound on the birefringent layer at high density.Type: ApplicationFiled: June 23, 2011Publication date: July 11, 2013Applicant: DEXERIALS CORPORATIONInventors: Nobuyuki Koike, Takatoshi Yamada, Akio Takada, Masatoshi Sasaki
-
Publication number: 20130135727Abstract: A wave plate capable of increasing a birefringence quantity and being made into a thin film, and a method of manufacturing the wave plate. The wave plate includes a substrate, whereon convex portions and concave portions are formed with a period less than or equal to the wavelength of light that is used therewith, columnar portions, wherein fine grains of a dielectric material are layered by oblique vapor deposition of a dielectric material from two directions, in a columnar shape on the convex portions in the vertical direction relative to the surface of the substrate, and interstices that are located on the concave portions and disposed between the columnar portions. Using birefringence from the fine grains of the dielectric material and birefringence from the concave/convex portions of the substrate allows increasing the birefringence quantity and making a thin film.Type: ApplicationFiled: May 25, 2010Publication date: May 30, 2013Applicant: DEXERIALS CORPORATIONInventors: Akio Takada, Takatoshi Yamada, Nobuyuki Koike, Masatoshi Sasaki, Kazuyuki Shibuya
-
Patent number: 8437477Abstract: A wireless apparatus including a button; a wireless communication interface; a processing unit to output encryption key information to another wireless apparatus using the wireless communication interface with lower transmission output than transmission output of information other than the encryption key information, responsive to detection of user's operation for the button; and a memory to store the output encryption key information corresponding to the another wireless apparatus. The wireless communication interface receives wireless signals from the another wireless apparatus and the processing unit decodes the information contained in the wireless signals and encrypted with the encryption key information. Also disclosed is an encryption key information managing method of managing encryption key information and a non-transitory readable-by-computer recording medium recorded with a program executed by a computer to manage encryption key information.Type: GrantFiled: April 3, 2009Date of Patent: May 7, 2013Assignee: Fujitsu LimitedInventor: Nobuyuki Koike
-
Patent number: 8429430Abstract: An information processor includes a set information storage unit storing evacuation residual quantity information representing an evacuation residual quantity as a residual quantity of the battery that corresponds to electric power necessary for executing a data evacuation process for storing data, stored in a memory of the information processor, onto a nonvolatile recording medium, a battery residual quantity detecting unit detecting the battery residual quantity of the battery, a load information collecting unit acquiring load information representing an electric load of the information processor, an evacuation residual quantity setting unit setting the evacuation residual quantity based on the load information collected by the load information collecting unit, and controls the set information storage unit to store the evacuation residual quantity information representing the set evacuation residual quantity, and an evacuation control unit controlling execution of the data evacuation process.Type: GrantFiled: February 6, 2009Date of Patent: April 23, 2013Assignee: Fujitsu LimitedInventor: Nobuyuki Koike
-
Publication number: 20130095337Abstract: A thermoplastic resin laminate is a transparent substrate material or protective material which is excellent in transparency, birefringence, and pattern-formability. The laminate is a synthetic resin laminate formed of a methacrylic resin layer, and a vinyl copolymer resin layer laminated on one or both sides of the methacrylic resin layer. The vinyl copolymer resin contains a (meth)acrylate structural unit and an aliphatic vinyl structural unit represented by specific formulas. The ratio of the sum of the (meth)acrylate structural units and the aliphatic vinyl structural units is 90 to 100 mol % with respect to all the structural units that form the resin. The ratio by mole of the (meth)acrylate structural unit to the aliphatic vinyl structural unit is 65:35 to 85:15. The methacrylic resin contains a structural unit having no benzene ring in an amount of 90 mol % or more with respect to all the structural units.Type: ApplicationFiled: June 17, 2011Publication date: April 18, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Kazuya Sato, Nobuyuki Koike, Hiroki Oguro, Yoshio Aoki
-
Patent number: 8414979Abstract: An object of the present invention is to provide a radiation-curable coating material which forms a cured coating film having high hardness and low curing shrinkage, a radiation-curable resin composition for obtaining the radiation-curable coating material, and a method for forming a protective layer using the radiation-curable coating material.Type: GrantFiled: March 4, 2008Date of Patent: April 9, 2013Assignee: DIC CorporationInventors: Yohzoh Yamashina, Hiroyuki Tokuda, Youichi Tanimoto, David, Nobuyuki Koike
-
Publication number: 20130059158Abstract: A synthetic resin laminate for use for transparent substrate materials and transparent protective materials is excellent in interlayer adhesiveness, form stability in high-temperature and high humidity environments, surface hardness and impact resistance. The synthetic resin laminate has a vinyl copolymer resin (A) layer and a polycarbonate resin (B) layer, wherein layer (A) is directly laminated on one surface of layer (B), and in which (A) contains a (meth)acrylate structural unit (a) represented by a specific formula and an aliphatic vinyl structural unit (b) represented by a specific formula, the total proportion of the (meth)acrylate structural unit (a) and the aliphatic vinyl structural unit (b) is from 90 to 100 mol % relative to the total of all the structural units in (A), and the proportion of the (meth)acrylate structural unit (a) is from 65 to 80 mol % relative to the total of all the structural units in (A).Type: ApplicationFiled: May 17, 2011Publication date: March 7, 2013Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Hiroki Oguro, Nobuyuki Koike, Yoshio Aoki, Kazuya Sato, Toshinari Aoki
-
Publication number: 20130059980Abstract: To provide a highly transparent thermoplastic resin composition without requiring, for example, a special molecular design or incorporation of an additive, with the refractive index of the composition being readily controllable. The highly transparent and refractive-index-controllable thermoplastic resin composition can be produced by blending a thermoplastic resin (A) containing a structural unit derived from a (meth)acrylic acid ester monomer represented by a specific chemical formula and a structural unit derived from an aromatic vinyl monomer represented by a specific chemical formula, with a thermoplastic resin (B) obtained by hydrogenating aromatic double bonds of a thermoplastic resin which contains a structural unit derived from a (meth)acrylic acid ester monomer represented by a specific chemical formula and a structural unit derived from an aromatic vinyl monomer represented by a specific chemical formula.Type: ApplicationFiled: May 2, 2011Publication date: March 7, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yoshio Aoki, Kazuya Sato, Hiroki Oguro, Nobuyuki Koike
-
Patent number: 8335869Abstract: The information processing apparatus includes: a connection unit which an electronic apparatus is adapted to be communicably coupled to; a connection detecting unit which detects coupling of the electronic apparatus to the connection unit; a timer which measures a time duration that elapses under a connection state, in which the electronic apparatus is engaged; and an alerting unit which alerts a user of the information processing apparatus when it is detected by the timer that a predetermined time duration elapses. With this arrangement, it is possible to prevent forgetting to disengage the electronic apparatus from the information processing apparatus, and the convenience of handling of the electronic apparatuses is improved.Type: GrantFiled: September 25, 2008Date of Patent: December 18, 2012Assignee: Fujitsu LimitedInventors: Nobuyuki Koike, Kouichi Aida
-
Publication number: 20120293732Abstract: A phase difference element capable of reducing reflection of incident light and a manufacturing method for the phase difference element are disclosed. The phase difference element includes a transparent substrate 11, an interface anti-reflection film group 12 and an obliquely vapor deposited film 13. The interface anti-reflection film group is composed by one or more of alternately high and low refractive index films, with the film thicknesses of the respectively films being equal to or less than the wavelength of light in use. The obliquely vapor deposited film is formed by a plurality of layers of a dielectric material. These layers are alternately obliquely vapor deposited from two directions differing by 180° from each other. The refractive index of the interface anti-reflection film group 12 is higher than the refractive index of the transparent substrate 11 and lesser than that of the obliquely vapor deposited film 13 (FIG. 1).Type: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: Sony Chemical & Information Device CorporationInventors: Nobuyuki Koike, Masatoshi Sasaki, Naoki Hanashima, Akio Takada, Takatoshi Yamada
-
Publication number: 20120295069Abstract: A phase difference element has a transparent substrate and a birefringent film with tantalum oxide and titanium oxide obliquely deposited on one surface of the transparent substrate. The birefringent film has a first photorefractive film and a second photorefractive film laminated to each other and having different oblique deposition directions. The ratio of titanium atoms to the total of titanium atoms and tantalum atoms in the birefringent film is 4.0 atomic % or higher to 30 atomic % or lower.Type: ApplicationFiled: May 10, 2012Publication date: November 22, 2012Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATIONInventor: Nobuyuki KOIKE