Patents by Inventor Yuko Tachimura
Yuko Tachimura 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: 9147820Abstract: It is an object of the present invention to provide a high-contrast light-emitting device without using a polarization plate. In particular, it is an object of the present invention to make contrast control simpler for a light-emitting device provided with a color filter. A light-emitting device according to the present invention has a feature of having a structure for reducing reflection of light from a light-emitting later at a reflective electrode, and further, has a feature of absorbing wavelengths other than the light by a color filter to enhance the contrast. Accordingly, contrast control can be performed in consideration of only a luminescence component from the light-emitting layer, and is thus made simpler.Type: GrantFiled: January 17, 2014Date of Patent: September 29, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Noda, Masayuki Sakakura, Yasuyuki Arai, Yuko Tachimura
-
Patent number: 9030298Abstract: The present invention provides a thin semiconductor device in which its security such as prevention of counterfeit or information leakage is to be enhanced. One feature of the present invention is a thin semiconductor device in which a plurality of thin film integrated circuits are mounted and in which at least one integrated circuit is different from the other integrated circuits in any one of a specification, layout, frequency for transmission or reception, a memory, a communication means, a communication rule and the like. According to the present invention, a thin semiconductor device tag having the plurality of thin film integrated circuits communicates with a reader/writer and at least one of the thin film integrated circuits receives a signal to write information in a memory, and the information written in the memory determines which of the thin film integrated circuits communicates.Type: GrantFiled: March 20, 2012Date of Patent: May 12, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Takeshi Osada, Yasuyuki Arai, Yuko Tachimura
-
Patent number: 9013303Abstract: One feature of the present invention is a product management system that includes a package body for packing a product attached with an ID tag, and a reader/writer. The ID tag includes a thin film integrated circuit portion and an antenna, the package body includes a resonance circuit portion having an antenna coil and a capacitor, and the resonance circuit portion can communicate with the reader/writer and the ID tag. Accordingly, the stability of communication between an ID tag attached to a product and an R/W can be secured, and management of products can be conducted simply and efficiently, even if a product is packed by a package body.Type: GrantFiled: July 23, 2012Date of Patent: April 21, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Mai Akiba, Yuko Tachimura, Yohei Kanno
-
Patent number: 8749464Abstract: It is an object of the invention to provide a display device which performs high grayscale display in accordance with display contents and a game machine with an improved realistic sensation. The invention is a display device characterized by including a pixel portion which performs display based on a video signal and a driver circuit portion inputted with the video signal, wherein the driver circuit portion has a unit for controlling a grayscale in accordance with display of the pixel portion. In a liquid crystal display device, luminance of a lighting unit is controlled based on a signal from the unit for controlling a grayscale whereas a current supplied to a light emitting element is controlled in a light emitting device. By applying such a display device to a game machine, a realistic sensation can be improved.Type: GrantFiled: November 20, 2012Date of Patent: June 10, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yu Kojima, Yuko Tachimura, Shunpei Yamazaki, Yoshifumi Tanada
-
Publication number: 20140134771Abstract: It is an object of the present invention to provide a high-contrast light-emitting device without using a polarization plate. In particular, it is an object of the present invention to make contrast control simpler for a light-emitting device provided with a color filter. A light-emitting device according to the present invention has a feature of having a structure for reducing reflection of light from a light-emitting later at a reflective electrode, and further, has a feature of absorbing wavelengths other than the light by a color filter to enhance the contrast. Accordingly, contrast control can be performed in consideration of only a luminescence component from the light-emitting layer, and is thus made simpler.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Noda, Masayuki Sakakura, Yasuyuki Arai, Yuko Tachimura
-
Patent number: 8633473Abstract: It is an object of the present invention to provide a high-contrast light-emitting device without using a polarization plate. In particular, it is an object of the present invention to make contrast control simpler for a light-emitting device provided with a color filter. A light-emitting device according to the present invention has a feature of having a structure for reducing reflection of light from a light-emitting later at a reflective electrode, and further, has a feature of absorbing wavelengths other than the light by a color filter to enhance the contrast. Accordingly, contrast control can be performed in consideration of only a luminescence component from the light-emitting layer, and is thus made simpler.Type: GrantFiled: December 27, 2005Date of Patent: January 21, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Noda, Masayuki Sakakura, Yasuyuki Arai, Yuko Tachimura
-
Patent number: 8575740Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.Type: GrantFiled: September 14, 2012Date of Patent: November 5, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Yuko Tachimura, Yohei Kanno, Mai Akiba
-
Publication number: 20130009289Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yasuyuki ARAI, Yuko TACHIMURA, Yohei KANNO, Mai AKIBA
-
Publication number: 20120299705Abstract: One feature of the present invention is a product management system that includes a package body for packing a product attached with an ID tag, and a reader/writer. The ID tag includes a thin film integrated circuit portion and an antenna, the package body includes a resonance circuit portion having an antenna coil and a capacitor, and the resonance circuit portion can communicate with the reader/writer and the ID tag. Accordingly, the stability of communication between an ID tag attached to a product and an R/W can be secured, and management of products can be conducted simply and efficiently, even if a product is packed by a package body.Type: ApplicationFiled: July 23, 2012Publication date: November 29, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yasuyuki ARAI, Mai AKIBA, Yuko TACHIMURA, Yohei KANNO
-
Patent number: 8319714Abstract: It is an object of the invention to provide a display device which performs high grayscale display in accordance with display contents and a game machine with an improved realistic sensation. The invention is a display device characterized by including a pixel portion which performs display based on a video signal and a driver circuit portion inputted with the video signal, wherein the driver circuit portion has a unit for controlling a grayscale in accordance with display of the pixel portion. In a liquid crystal display device, luminance of a lighting unit is controlled based on a signal from the unit for controlling a grayscale whereas a current supplied to a light emitting element is controlled in a light emitting device. By applying such a display device to a game machine, a realistic sensation can be improved.Type: GrantFiled: December 2, 2005Date of Patent: November 27, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yu Kojima, Yuko Tachimura, Shunpei Yamazaki, Yoshifumi Tanada
-
Patent number: 8305213Abstract: Since the chip formed from a silicon wafer is thick, the chip is protruded from the surface or the chip is so large that it can be seen through the eyes, which affects the design of a business card or the like. Hence, it is an object of the present invention to provide a new integrated circuit which has a structure by which the design is not affected. In view of the above problems, it is a feature of the invention to equip a film-like article with a thin film integrated circuit. It is another feature of the invention that the IDF chip has a semiconductor film of 0.2 mm or less, as an active region. Therefore, the IDF chip can be made thinner as compared with a chip formed from a silicon wafer. In addition, such an integrated circuit can have light transmitting characteristic unlike a chip formed from a silicon wafer.Type: GrantFiled: January 20, 2005Date of Patent: November 6, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Mai Akiba, Yohei Kanno, Yuko Tachimura
-
Patent number: 8237569Abstract: When a product attached with an ID tag is placed inside a package body, there is a risk that communication with an ID tag using a reader/writer is blocked. Then, it is difficult to manage products in a distribution process of products, which leads to lose convenience of ID tags. One feature of the present invention is a product management system that includes a package body for packing a product attached with an ID tag, and a reader/writer. The ID tag includes a thin film integrated circuit portion and an antenna, the package body includes a resonance circuit portion having an antenna coil and a capacitor, and the resonance circuit portion can communicate with the reader/writer and the ID tag. Accordingly, the stability of communication between an ID tag attached to a product and an R/W can be secured, and management of products can be conducted simply and efficiently, even if a product is packed by a package body.Type: GrantFiled: April 6, 2005Date of Patent: August 7, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Mai Akiba, Yuko Tachimura, Yohei Kanno
-
Publication number: 20120175753Abstract: The present invention provides a thin semiconductor device in which its security such as prevention of counterfeit or information leakage is to be enhanced. One feature of the present invention is a thin semiconductor device in which a plurality of thin film integrated circuits are mounted and in which at least one integrated circuit is different from the other integrated circuits in any one of a specification, layout, frequency for transmission or reception, a memory, a communication means, a communication rule and the like. According to the present invention, a thin semiconductor device tag having the plurality of thin film integrated circuits communicates with a reader/writer and at least one of the thin film integrated circuits receives a signal to write information in a memory, and the information written in the memory determines which of the thin film integrated circuits communicates.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Shunpei YAMAZAKI, Takeshi OSADA, Yasuyuki ARAI, Yuko TACHIMURA
-
Patent number: 8193532Abstract: The present invention provides an ultrathin thin film integrated circuit and a thin film integrated circuit device including the thin film integrated circuit device. Accordingly, the design of a product is not spoilt while an integrated circuit formed from a silicon wafer, which is thick and produces irregularities on the surface of the product container. The thin film integrated circuit according to the present invention includes a semiconductor film as an active region (for example a channel region in a thin film transistor), unlike an integrated circuit formed from a conventional silicon wafer. The thin film integrated circuit according to the present invention is thin enough that the design is not spoilt even when a product such as a card or a container is equipped with the thin film integrated circuit.Type: GrantFiled: May 25, 2011Date of Patent: June 5, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Akira Ishikawa, Toru Takayama, Junya Maruyama, Yuugo Goto, Yumiko Ohno, Yuko Tachimura
-
Patent number: 8136735Abstract: As a non-contact ID label, ID tag and the like being widespread, it is required to manufacture a considerable quantity of ID labels at quite a low cost. An ID label attached to a product is, for example, required to be manufactured at 1 to several yens each, or preferably less than one yen. Thus, such a structure and a process are demanded that an ID label can be manufactured in a large quantity at a low cost. A thin film integrated circuit device included in the ID label, the ID card, and the ID tag of the invention each includes a thin film active element such as a thin film transistor (TFT). Therefore, by peeling a substrate on which TFTs are formed for separating elements, the ID label and the like can be manufactured in a large quantity at a low cost.Type: GrantFiled: January 20, 2005Date of Patent: March 20, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Mai Akiba, Yuko Tachimura, Yohei Kanno
-
Publication number: 20110284974Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.Type: ApplicationFiled: August 2, 2011Publication date: November 24, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yasuyuki ARAI, Yuko TACHIMURA, Yohei KANNO
-
Publication number: 20110223966Abstract: The present invention provides an ultrathin thin film integrated circuit and a thin film integrated circuit device including the thin film integrated circuit device. Accordingly, the design of a product is not spoilt while an integrated circuit formed from a silicon wafer, which is thick and produces irregularities on the surface of the product container. The thin film integrated circuit according to the present invention includes a semiconductor film as an active region (for example a channel region in a thin film transistor), unlike an integrated circuit formed from a conventional silicon wafer. The thin film integrated circuit according to the present invention is thin enough that the design is not spoilt even when a product such as a card or a container is equipped with the thin film integrated circuit.Type: ApplicationFiled: May 25, 2011Publication date: September 15, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yasuyuki ARAI, Akira ISHIKAWA, Toru TAKAYAMA, Junya MARUYAMA, Yuugo GOTO, Yumiko OHNO, Yuko TACHIMURA
-
Patent number: 7994617Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.Type: GrantFiled: February 1, 2005Date of Patent: August 9, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Yuko Tachimura, Yohei Kanno, Mai Akiba
-
Patent number: 7973313Abstract: The present invention provides an ultrathin thin film integrated circuit and a thin film integrated circuit device including the thin film integrated circuit device. Accordingly, the design of a product is not spoilt while an integrated circuit formed from a silicon wafer, which is thick and produces irregularities on the surface of the product container. The thin film integrated circuit according to the present invention includes a semiconductor film as an active region (for example a channel region in a thin film transistor), unlike an integrated circuit formed from a conventional silicon wafer. The thin film integrated circuit according to the present invention is thin enough that the design is not spoilt even when a product such as a card or a container is equipped with the thin film integrated circuit.Type: GrantFiled: February 20, 2004Date of Patent: July 5, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuyuki Arai, Akira Ishikawa, Toru Takayama, Junya Maruyama, Yuugo Goto, Yumiko Ohno, Yuko Tachimura
-
Patent number: 7968461Abstract: It is required that a line width of a wiring is prevented from being wider to be miniaturized when the wiring or the like is formed by a dropping method typified by an ink-jetting method. Therefore, the invention provides a method for narrowing (miniaturizing) the line width according to a method different from a conventional method. A region to be liquid-repellent is formed and further, a region to be lyophilic is formed selectively in the region to be liquid-repellent in a surface for forming a pattern, before forming a desired pattern. After that, a pattern for a wiring or the like is formed in the lyophilic region by a dropping method typified by an ink-jetting method for dropping a composition including a conductive material for the wiring or the like.Type: GrantFiled: October 25, 2004Date of Patent: June 28, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shinji Maekawa, Shunpei Yamazaki, Yuko Tachimura, Koji Muranaka