Patents by Inventor Toshiyuki Goshima
Toshiyuki Goshima 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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Publication number: 20220162445Abstract: Provided a polyimide compound having high heat resistance and transparency. The polyimide compound according to the present invention is characterized in that it is a reaction product of a diamine compound represented by the following general formula (1): and an alicyclic tetracarboxylic acid dianhydride represented by the following general formula (2).Type: ApplicationFiled: February 1, 2019Publication date: May 26, 2022Applicant: WINGO TECHNOLOGY CO., LTD.Inventors: Toshiyuki GOSHIMA, Win Maw SOE
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Patent number: 11136286Abstract: [Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: GrantFiled: May 7, 2020Date of Patent: October 5, 2021Assignee: WINGO TECHNOLOGY CO., LTD.Inventors: Toshiyuki Goshima, Win Maw Soe
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Patent number: 11124474Abstract: [Problems to be Solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: GrantFiled: May 7, 2020Date of Patent: September 21, 2021Assignee: WINGO TECHNOLOGY CO., LTD.Inventors: Toshiyuki Goshima, Win Maw Soe
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Publication number: 20200262782Abstract: [Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Inventors: Toshiyuki Goshima, Maw Soe Win
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Publication number: 20200262783Abstract: [Problems to be Solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Inventors: Toshiyuki Goshima, Maw Soe Win
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Patent number: 10683259Abstract: [Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: GrantFiled: January 17, 2018Date of Patent: June 16, 2020Assignee: WINGO TECHNOLOGY CO., LTD.Inventors: Toshiyuki Goshima, Maw Soe Win
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Publication number: 20190389795Abstract: [Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): (wherein R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aromatic group; and at least one of R1 to R8 is a substituted or unsubstituted aromatic group).Type: ApplicationFiled: January 17, 2018Publication date: December 26, 2019Inventors: Toshiyuki Goshima, Maw Soe Win
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Patent number: 9780375Abstract: Disclosed is a highly reliable secondary battery, as well as an electrode and a conductive agent used therefor, which battery has a long cycle life and is also less likely to be damaged or rupture even when the battery temperature becomes abnormally high. The conductive agent of the battery electrode contains, as the main component, a reaction product between a ?-conjugated carbon material and a soluble polyimide, preferably a soluble block copolymerized polyimide. The battery electrode is formed by coating a composition containing this conductive agent and an electrode active substance onto a current collector. The battery comprises this electrode.Type: GrantFiled: May 19, 2009Date of Patent: October 3, 2017Assignees: PI R&D CO., LTD., MORI POLYMER CO., INC.Inventors: Takaki Mori, Toshiyuki Goshima, Maw Soe Win
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Patent number: 9780376Abstract: Disclosed is a highly reliable secondary battery, as well as an electrode and a conductive agent used therefor, which battery has a long cycle life and is also less likely to be damaged or rupture even when the battery temperature becomes abnormally high. The conductive agent of the battery electrode contains, as the main component, a reaction product between a ?-conjugated carbon material and a soluble polyimide, preferably a soluble block copolymerized polyimide. The battery electrode is formed by coating a composition containing this conductive agent and an electrode active substance onto a current collector. The battery comprises this electrode.Type: GrantFiled: May 13, 2015Date of Patent: October 3, 2017Assignees: PI R&D CO., LTD., MORI POLYMER CO., INC.Inventors: Takaki Mori, Toshiyuki Goshima, Maw Soe Win
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Patent number: 9287424Abstract: Disclosed are a method of forming a back reflection layer in a solar cell, a composition used therefor, and a solar cell having a back reflection layer formed by the method, which layer has superior heat-resistance and various types of durabilities, and can contribute to improving the conversion rate of solar cells and reliability during long-term use, and which method can form a back reflection layer in a solar cell easily and at low cost. The polyimide resin composition for use in forming a back reflection layer in a solar cell includes an organic solvent, a polyimide resin dissolved in the organic solvent, and light-reflecting particles dispersed in the organic solvent.Type: GrantFiled: September 20, 2011Date of Patent: March 15, 2016Assignee: PI R&D CO., LTD.Inventors: Maw Soe Win, Toshiyuki Goshima, Takahiro Sato, Hidenao Takato, Isao Sakata
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Publication number: 20150249251Abstract: Disclosed is a highly reliable secondary battery, as well as an electrode and a conductive agent used therefor, which battery has a long cycle life and is also less likely to be damaged or rupture even when the battery temperature becomes abnormally high. The conductive agent of the battery electrode contains, as the main component, a reaction product between a ?-conjugated carbon material and a soluble polyimide, preferably a soluble block copolymerized polyimide. The battery electrode is formed by coating a composition containing this conductive agent and an electrode active substance onto a current collector. The battery comprises this electrode.Type: ApplicationFiled: May 13, 2015Publication date: September 3, 2015Applicants: PI R&D CO., LTD., Mori Polymer Co., Inc.Inventors: Takaki MORI, Toshiyuki GOSHIMA, Maw Soe WIN
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Patent number: 8987376Abstract: Disclosed is a polyimide composition for semiconductor devices, which has a rheological characteristics suited for screen printing and dispense coating, which has an improved wetting property with various coating bases, by which continuous printing of 500 times or more can be attained, with which blisters, cissing and pinholes are not generated after printing and drying or during drying or curing, which can coat a desired area. A method of forming a film in a semiconductor and semiconductors having the film formed by this method as an insulation film, protective film or the like are also disclosed. The composition for semiconductor devices contains a mixed solvent of a first organic solvent (A) and a second organic solvent (B); and a polyimide resin having at least one group selected from the group consisting of alkyl groups and perfluoroalkyl groups in recurring units, and having thixotropic property, the polyimide resin being dissolved in the mixed solvent.Type: GrantFiled: February 25, 2011Date of Patent: March 24, 2015Assignees: PI R&D Co., Ltd., Mitsubishi Electric CorporationInventors: Toshiyuki Goshima, Sigemasa Segawa, Maw Soe Win, Junichi Yamashita, Ken Takanashi
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Patent number: 8859170Abstract: Disclosed are: a photosensitive modified polyimide resin composition having photo-fabrication property, which is excellent in the electric properties and adhesion as well as in the heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; a resin film formed from the composition; and a printed circuit board, flexible printed circuit board (FPC) and the like which comprises the film as an insulating protective film and/or interlayer insulation film. The photosensitive modified polyimide resin composition comprises a modified polyimide of a specific structure having a flexible structure such as polycarbonate; a photosensitizer; a curing agent; and a solvent.Type: GrantFiled: April 30, 2010Date of Patent: October 14, 2014Assignee: PI R&D Co., Ltd.Inventors: Toshiyuki Goshima, Maw Soe Win, Sigemasa Segawa, Eika Kyo
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Patent number: 8779085Abstract: The present invention discloses a method of producing a modified polyimide comprising a polycarbonate, which modified polyimide has excellent electric properties and adhesion as well as excellent heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; and the modified polyimide. Also disclosed are a composition comprising the modified polyimide and used thereof.Type: GrantFiled: April 30, 2010Date of Patent: July 15, 2014Assignee: PI R&D Co., Ltd.Inventors: Toshiyuki Goshima, Maw Soe Win, Eika Kyo
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Publication number: 20130310482Abstract: Disclosed are a method of forming a back reflection layer in a solar cell, a composition used therefor, and a solar cell having a back reflection layer formed by the method, which layer has superior heat-resistance and various types of durabilities, and can contribute to improving the conversion rate of solar cells and reliability during long-term use, and which method can form a back reflection layer in a solar cell easily and at low cost. The polyimide resin composition for use in forming a back reflection layer in a solar cell includes an organic solvent, a polyimide resin dissolved in the organic solvent, and light-reflecting particles dispersed in the organic solvent.Type: ApplicationFiled: September 20, 2011Publication date: November 21, 2013Applicant: PI R&D CO., LTD.Inventors: Maw Soe Win, Toshiyuki Goshima, Takahiro Sato, Hidenao Takato, Isao Sakata
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Publication number: 20130233381Abstract: Disclosed is a polyimide resin composition for forming an insulation layer in a solar cell, which has an optimal rheological characteristics for screen printing and the like, which has an improved wetting property with various coating substrates, by which continuous printing of 500 times or more can be attained, with which blisters, cissing and pinholes are not generated after printing and drying or during drying or curing, which can coat a predetermined area. A method of forming an insulation layer in a solar cell and a solar cell having the insulation layer formed by this method are also disclosed.Type: ApplicationFiled: September 20, 2011Publication date: September 12, 2013Applicant: PI R&D CO., LTD.Inventors: Maw Soe Win, Toshiyuki Goshima, Takahiro Sato
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Patent number: 8372257Abstract: A suspension type electrodeposition coating composition containing, as a resin component, block copolyimide having a siloxane bond in a molecular structure and an anionic group in a molecule. Preferably, the above-mentioned block copolyimide contains, as one of the diamine components, diamine having a siloxane, bond in a molecular structure. In addition, preferably, the above-mentioned anionic group is a carboxylic acid group or a salt thereof and/or a sulfonic acid group or a salt thereof. The electrodeposition coating composition has superior heat resistance, which does not easily develop peeling and cracks in the electrodeposited body, and is capable of efficiently forming a high-insulation electrodeposited film superior in the uniformity of film property.Type: GrantFiled: May 7, 2008Date of Patent: February 12, 2013Assignees: Mitsubishi Cable Industries, Ltd., PI R&D Co., Ltd.Inventors: Masanori Fujii, Toshihiro Zushi, Hiromasa Honjo, Toyokazu Nagato, Maw Soe Win, Shintaro Nakajima, Toshiyuki Goshima, Kiyoshi Ishii
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Patent number: 8349537Abstract: Disclosed is a photosensitive ink which can form a coated film that is excellent in insulation properties, heat resistance, low warping, low elasticity and adhesion with the substrate, when used as an ink for screen printing, and with which clogging of the screen, bleeding, blur, chipping and the like are unlikely to occur even when the screen printing is repeatedly carried out, so that which has an excellent ease of handling in printing. The ink composition comprises 100 parts by weight of an organic solvent-soluble polyimide block copolymer(s), and 1 to 100 parts by weight of a photoacid generator(s). The polyimide block copolymer(s) and the photoacid generator(s) are dissolved in an organic solvent. The polyimide block copolymer(s) contain(s) in its molecular skeleton a diamine having a siloxane bond, and an aromatic diamine having a hydroxyl group(s) and/or carboxyl group(s) at ortho-position with respect to an amino group.Type: GrantFiled: January 14, 2011Date of Patent: January 8, 2013Assignee: PI R&D Co., Ltd.Inventors: Maw Soe Win, Toshiyuki Goshima, Sigemasa Segawa, Shintaro Nakajima, Eika Kyo, Yoshikazu Nishikawa, Shuzo Waki
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Publication number: 20120097435Abstract: Disclosed are: a photosensitive modified polyimide resin composition having photo-fabrication property, which is excellent in the electric properties and adhesion as well as in the heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; a resin film formed from the composition; and a printed circuit board, flexible printed circuit board (FPC) and the like which comprises the film as an insulating protective film and/or interlayer insulation film. The photosensitive modified polyimide resin composition comprises a modified polyimide of a specific structure having a flexible structure such as polycarbonate; a photosensitizer; a curing agent; and a solvent.Type: ApplicationFiled: April 30, 2010Publication date: April 26, 2012Applicant: PI R&D CO., LTD.Inventors: Toshiyuki Goshima, Maw Soe Win, Sigemasa Segawa, Eika Kyo
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Publication number: 20120097439Abstract: The present invention discloses a method of producing a modified polyimide comprising a polycarbonate, which modified polyimide has excellent electric properties and adhesion as well as excellent heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; and the modified polyimide. Also disclosed are a composition comprising the modified polyimide and used thereof.Type: ApplicationFiled: April 30, 2010Publication date: April 26, 2012Applicant: PI R&D CO., LTD.Inventors: Toshiyuki Goshima, Maw Soe Win, Eika Kyo