Patents by Inventor Daisuke Iga
Daisuke Iga 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: 10107863Abstract: A test method for a secondary battery, which early detects the occurrence of the future micro short-circuiting in the screening and promotes to render the contaminant harmless while suppressing the short-circuiting between the positive and negative electrodes in the aging, is provided. This test method includes Step S12 of charging the secondary battery, Steps S13 and S14 of aging the secondary battery in a first pressed state, Step S17 of measuring a battery voltage (V1) after the aging, Step S18 of screening the secondary battery in a second pressed state with a higher pressure than in the first pressed state, and Step S19 of measuring a battery voltage (V2) after the screening. Whether the battery has the internal short-circuiting or not is determined (Step S20) based on the difference between the voltage (V1) measured in Step S17 and the voltage (V2) measured in Step S19.Type: GrantFiled: July 24, 2013Date of Patent: October 23, 2018Assignee: AUTOMOTIVE ENERGY SUPPLY CORPORATIONInventors: Junko Kurihara, Kenichi Sakai, Daisuke Iga, Chika Amemiya, Hiroaki Tanizaki
-
Patent number: 10079409Abstract: A method for producing cell 1, which includes cell element 4 wherein positive electrode plate 41 and negative electrode plate 42 are laminated with an interposal of separator 43 therebetween; and outer case 5 which houses cell element 4 together with an electrolyte solution. An electrolyte solution injection step for forming cell 1 by having outer case 5 contain cell element 4 and electrolyte solution (step S1), a charging step for charging cell 1 (step S2), and an impregnation condition inspection step for inspecting an impregnation condition of the electrolyte solution into cell element 4 after charging cell 1 are conducted in the order of the electrolyte solution injection step, the charging step and the impregnation condition inspection step.Type: GrantFiled: June 24, 2014Date of Patent: September 18, 2018Assignees: AUTOMOTIVE ENERGY SUPPLY CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Asako Kawashima, Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Tomoyuki Nagaoka, Takeshi Yasooka, Hiroshi Ishikawa
-
Patent number: 9647297Abstract: According to the present invention, there is provided a seal step (ST105) storing an electrode laminate in which a separator is disposed between a positive electrode and a negative electrode and an electrolyte within an exterior body constituted by a laminate film and sealing the exterior body; a pressure application step (ST106) of applying a pressure to the exterior body in which the electrode laminate is stored by means of a flat plate press working or so forth; charge step (ST102) of charging up to a full charge; a gas removal step (ST107) of unsealing the exterior body and removing gas generated within the exterior body at the charge step; and a re-seal step (ST108) of sealing the exterior body after the gas removal step. The number of times of the gas removal steps is small and an influence of gas on battery characteristics is suppressed.Type: GrantFiled: January 10, 2013Date of Patent: May 9, 2017Assignees: AUTOMOTIVE ENERGY SUPPLY CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Takeshi Yasooka
-
Publication number: 20160172718Abstract: A method for producing cell 1, which includes cell element 4 wherein positive electrode plate 41 and negative electrode plate 42 are laminated with an interposal of separator 43 therebetween; and outer case 5 which houses cell element 4 together with an electrolyte solution. An electrolyte solution injection step for forming cell 1 by having outer case 5 contain cell element 4 and electrolyte solution (step S1), a charging step for charging cell 1 (step S2), and an impregnation condition inspection step for inspecting an impregnation condition of the electrolyte solution into cell element 4 after charging cell 1 are conducted in the order of the electrolyte solution injection step, the charging step and the impregnation condition inspection step.Type: ApplicationFiled: June 24, 2014Publication date: June 16, 2016Applicants: Automotive Energy Supply Corporation, NISSAN MOTOR CO., LTD.Inventors: Asako KAWASHIMA, Shinichi TASAKI, Chika ANEMIYA, Daisuke IGA, Tomoyuki NAGAOKA, Takeshi YASOOKA, Hiroshi ISHIKAWA
-
Publication number: 20160161564Abstract: A test method for a secondary battery, which early detects the occurrence of the future micro short-circuiting in the screening and promotes to render the contaminant harmless while suppressing the short-circuiting between the positive and negative electrodes in the aging, is provided. This test method includes Step S12 of charging the secondary battery, Steps S13 and S14 of aging the secondary battery in a first pressed state, Step S17 of measuring a battery voltage (V1) after the aging, Step S18 of screening the secondary battery in a second pressed state with a higher pressure than in the first pressed state, and Step S19 of measuring a battery voltage (V2) after the screening. Whether the battery has the internal short-circuiting or not is determined (Step S20) based on the difference between the voltage (V1) measured in Step S17 and the voltage (V2) measured in Step S19.Type: ApplicationFiled: July 24, 2013Publication date: June 9, 2016Applicant: Automotive Energy Supply CorporationInventors: Junko KURIHARA, Kenichi SAKAI, Daisuke IGA, Chika AMEMIYA, Hiroaki TANIZAKI
-
Publication number: 20140352140Abstract: According to the present invention, there is provided a seal step (ST105) storing an electrode laminate in which a separator is disposed between a positive electrode and a negative electrode and an electrolyte within an exterior body constituted by a laminate film and sealing the exterior body; a pressure application step (ST106) of applying a pressure to the exterior body in which the electrode laminate is stored by means of a flat plate press working or so forth; charge step (ST102) of charging up to a full charge; a gas removal step (ST107) of unsealing the exterior body and removing gas generated within the exterior body at the charge step; and a re-seal step (ST108) of sealing the exterior body after the gas removal step. The number of times of the gas removal steps is small and an influence of gas on battery characteristics is suppressed.Type: ApplicationFiled: January 10, 2013Publication date: December 4, 2014Applicant: NISSAN MOTOR CO., LTDInventors: Shinichi Tasaki, Chika Amemiya, Daisuke Iga, Takeshi Yasooka
-
Patent number: 7888247Abstract: A method of forming a polycrystalline semiconductor film, which includes irradiating an amorphous semiconductor film formed on an insulating substrate with light to convert the amorphous semiconductor into a polycrystalline semiconductor with laterally grown crystal grains, thus forming a polycrystalline semiconductor film, wherein crystal growth in the semiconductor is controlled such that first crystal grains laterally grow in the first direction along a X-axis from the first group of initial nuclei, the second crystal grains laterally grow in the second direction opposite to the first direction along the X-axis from the second group of initial nuclei arranged apart from the first group of initial nuclei along the X-axis, and the first crystal grains collide against the second crystal grains at different points in time along a Y-axis.Type: GrantFiled: June 5, 2008Date of Patent: February 15, 2011Assignee: Advanced LCD Technologies Development Center Co., Ltd.Inventors: Daisuke Iga, Yukio Taniguchi
-
Patent number: 7525135Abstract: On a poly-silicon layer formed on a glass substrate, a gate electrode is formed via a gate insulation film. After forming an impurity-doped region in the poly-silicon layer using the gate electrode as a mask, an insulation layer is formed on the gate electrode and an insulation film is then formed covering these. At this stage, a step which is low in a periphery of the gate electrode but high in a center of the gate electrode is formed in the surface of the insulation layer which formed on the gate electrode, ensuring that the insulation layer and the insulation film on the center of the gate electrode attain a higher reflectance of laser beam than the insulation film and the gate insulation layer on the impurity-doped region do.Type: GrantFiled: July 8, 2005Date of Patent: April 28, 2009Assignee: NEC CorporationInventor: Daisuke Iga
-
Publication number: 20080305618Abstract: A method of forming a polycrystalline semiconductor film, which includes irradiating an amorphous semiconductor film formed on an insulating substrate with light to convert the amorphous semiconductor into a polycrystalline semiconductor with laterally grown crystal grains, thus forming a polycrystalline semiconductor film, wherein crystal growth in the semiconductor is controlled such that first crystal grains laterally grow in the first direction along a X-axis from the first group of initial nuclei, the second crystal grains laterally grow in the second direction opposite to the first direction along the X-axis from the second group of initial nuclei arranged apart from the first group of initial nuclei along the X-axis, and the first crystal grains collide against the second crystal grains at different points in time along a Y-axis.Type: ApplicationFiled: June 5, 2008Publication date: December 11, 2008Inventors: Daisuke IGA, Yukio TANIGUCHI
-
Patent number: 7301275Abstract: An organic electroluminescence (EL) display unit includes a plurality of pixels formed on a glass substrate and each including a TFT area and a luminescence area. An edge cover film covers the TFT area and exposes the luminescence area through a window formed in the edge cover film. The edge of the edge cover film adjacent to the window has a taper angle equal to or smaller than 30 degrees. This taper angle is obtained by a post-baking treatment in addition to a step alleviating film formed in the luminescence area to underlie the organic EL element.Type: GrantFiled: December 3, 2004Date of Patent: November 27, 2007Assignee: Samsung SDI Co., Ltd.Inventor: Daisuke Iga
-
Publication number: 20060220014Abstract: To provide a liquid crystal display device in which capacity value of storage capacitance is large and manufacturing cost is low, and a manufacturing method thereof. A plurality of gate lines is provided on a pixel circuit substrate of a liquid crystal display device. Further, a TFT is provided to each pixel, and a drain line is connected with the drain, and a pixel electrode is connected with the source, and the gate line is connected with the gate electrode. Lower electrodes are made to extend from the gate line. In an area immediately above the lower electrodes connected with the nth gate line from the drain line control circuit side, a pixel electrode coupled to the (n+1)th gate line via the TFT is disposed. Thereby, storage capacitance is formed between the lower electrodes connected with the nth gate line and the pixel electrode coupled to the (n+1)th gate line.Type: ApplicationFiled: March 15, 2006Publication date: October 5, 2006Inventors: Naoto Hirano, Daisuke Iga, Kazuhide Yoshinaga
-
Publication number: 20060006429Abstract: On a poly-silicon layer formed on a glass substrate, a gate electrode is formed via a gate insulation film. After forming an impurity-doped region in the poly-silicon layer using the gate electrode as a mask, an insulation layer is formed on the gate electrode and an insulation film is then formed covering these. At this stage, a step which is low in a periphery of the gate electrode but high in a center of the gate electrode is formed in the surface of the insulation layer which formed on the gate electrode, ensuring that the insulation layer and the insulation film on the center of the gate electrode attain a higher reflectance of laser beam than the insulation film and the gate insulation layer on the impurity-doped region do.Type: ApplicationFiled: July 8, 2005Publication date: January 12, 2006Inventor: Daisuke Iga
-
Publication number: 20050168135Abstract: A luminescence display apparatus including a light blocking structure having a function of reflecting light propagating through the dielectric layer and/or of attenuating light propagating through the dielectric layer, that surrounds a EL element for separating a pixel driving TFT from the EL element. Self-emitted light or external light be attenuated before reaching the TFT by using the light blocking structure to reduce the photo leakage of the TFT to provide the active matrix organic EL display apparatus having the less defects and the excellent gradation controllability.Type: ApplicationFiled: December 16, 2004Publication date: August 4, 2005Inventor: Daisuke Iga
-
Publication number: 20050099117Abstract: An organic electroluminescence (EL) display unit includes a plurality of pixels formed on a glass substrate and each including a TFT area and a luminescence area. An edge cover film covers the TFT area and exposes the luminescence area through a window formed in the edge cover film. The edge of the edge cover film adjacent to the window has a taper angle equal to or smaller than 30 degrees. This taper angle is obtained by a post-baking treatment in addition to a step alleviating film formed in the luminescence area to underlie the organic EL element.Type: ApplicationFiled: December 3, 2004Publication date: May 12, 2005Inventor: Daisuke Iga
-
Patent number: 6836069Abstract: An organic electroluminescence (EL) display unit includes a plurality of pixels formed on a glass substrate and each including a TFT area and a luminescence area. An edge cover film covers the TFT area and exposes the luminescence area through a window formed in the edge cover film. The edge of the edge cover film adjacent to the window has a taper angle equal to or smaller than 30 degrees. This taper angle is obtained by a post-baking treatment in addition to a step alleviating film formed in the luminescence area to underlie the organic EL element.Type: GrantFiled: February 11, 2003Date of Patent: December 28, 2004Assignee: Samsung SDI Co., Ltd.Inventor: Daisuke Iga
-
Publication number: 20030151358Abstract: An organic electroluminescence (EL) display unit includes a plurality of pixels formed on a glass substrate and each including a TFT area and a luminescence area. An edge cover film covers the TFT area and exposes the luminescence area through a window formed in the edge cover film. The edge of the edge cover film adjacent to the window has a taper angle equal to or smaller than 30 degrees. This taper angle is obtained by a post-baking treatment in addition to a step alleviating film formed in the luminescence area to underlie the organic EL element.Type: ApplicationFiled: February 11, 2003Publication date: August 14, 2003Applicant: NEC CORPORATIONInventor: Daisuke Iga