Patents by Inventor Naoyuki Ito
Naoyuki Ito 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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Patent number: 11569448Abstract: Provided is a cross-linkable arylamine-based compound represented by Formula 1a or 1b, a polymer obtained therefrom, a light-emitting device including the polymer, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode; a second electrode facing the first electrode; and an intermediate layer between the first electrode and the second electrode and comprising an emission layer, wherein the intermediate layer includes at least one of the arylamine-based polymer formed by cross-linking a cross-linkable arylamine-based compound represented by Formula 1a or 1b.Type: GrantFiled: February 15, 2019Date of Patent: January 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Dongwoo Shin, Dukki Kim, Sehun Kim, Jaeyun Kim, Jongwon Park, Seungmook Lee, Jaekook Ha, Naoyuki Ito
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Patent number: 11559113Abstract: A plug for a buckle includes an attachment portion configured to be attached to the predetermined members; a pair of leg portions protruding in the same direction away from the attachment portion; extending portions extending in a direction from tip end portions of the pair of leg portions toward base end portions of the leg portions; a coupling piece coupling the base end portions of the pair of leg portions; a first restricting portion that is located at an intermediate portion of the coupling piece and faces extending ends of the extending portions; and second restricting portions that protrude from two sides in a longitudinal direction of the coupling piece in a manner of sandwiching the first restricting portion, extend in a protruding direction of the leg portions, and face inner side surfaces of the leg portions.Type: GrantFiled: December 7, 2018Date of Patent: January 24, 2023Inventor: Naoyuki Ito
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Publication number: 20220209163Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: E T ? 1 > E T ? 2 .Type: ApplicationFiled: March 9, 2022Publication date: June 30, 2022Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee
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Patent number: 11316124Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.Type: GrantFiled: August 15, 2019Date of Patent: April 26, 2022Assignee: Samsung Display Co., Ltd.Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee
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Publication number: 20220117362Abstract: A plug for a buckle includes an attachment portion configured to be attached to the predetermined members; a pair of leg portions protruding in the same direction away from the attachment portion; extending portions extending in a direction from tip end portions of the pair of leg portions toward base end portions of the leg portions; a coupling piece coupling the base end portions of the pair of leg portions; a first restricting portion that is located at an intermediate portion of the coupling piece and faces extending ends of the extending portions; and second restricting portions that protrude from two sides in a longitudinal direction of the coupling piece in a manner of sandwiching the first restricting portion, extend in a protruding direction of the leg portions, and face inner side surfaces of the leg portions.Type: ApplicationFiled: December 7, 2018Publication date: April 21, 2022Inventor: Naoyuki Ito
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Patent number: 11276827Abstract: A condensed cyclic compound represented by Formula 1 and an organic light-emitting device including the same.Type: GrantFiled: January 5, 2017Date of Patent: March 15, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Jino Lim
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Publication number: 20220077399Abstract: An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *?N—*? as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:Type: ApplicationFiled: November 18, 2021Publication date: March 10, 2022Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 11258029Abstract: A light emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode; and m?1 charge generating layer(s) between the two adjacent emission units from among the m emission units, m?1 charge generating layer(s) including m?1 n-type charge generating layer(s) and m?1 p-type charge generating layer(s), wherein m is an integer of 2 or greater, a maximum emission wavelength of light emitted from at least one of the m emission units differs from that of light emitted from at least one of the other emission units, at least one of the m?1 n-type charge generating layer(s) includes a metal-containing material and an electron transporting metal-non-containing material.Type: GrantFiled: May 29, 2020Date of Patent: February 22, 2022Assignee: Samsung Display Co., Ltd.Inventors: Younsun Kim, Seulong Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 11239786Abstract: Provided is a motor control device that includes a controller outputting a PWM control signal for controlling a multiphase electric motor, a driving signal generator generating a switching element driving signal for driving the multiphase electric motor according to the PWM control signal output from the controller, and a bridge circuit configured of a plurality of semiconductor switching elements switching a current flowing through the multiphase electric motor according to the switching element driving signal generated by the driving signal generator. The controller is provided on a first board. The driving signal generator and the bridge circuit are provided on a second board and are connected by wiring provided on the second board. The first board and the second board are connected by a predetermined inter-board connecting line. The controller outputs the PWM control signal to the driving signal generator through the predetermined inter-board connecting line.Type: GrantFiled: January 17, 2020Date of Patent: February 1, 2022Assignee: NIDEC MOBILITY CORPORATIONInventors: Hiromi Murata, Jiro Matsukawa, Tomoya Yamanaka, Masamitsu Hamasaki, Naoyuki Ito, Keita Gunji
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Patent number: 11219279Abstract: A buckle with a string adjustment portion includes a plug and a socket. The plug includes: a tightening string member attachment portion configured to slidably lock a string member and adjust a length of the string member; and leg portions which are inserted into and engaged with the socket. The socket includes a fitting portion including an insertion opening. An insertion hole through which the string member is inserted is formed to penetrate the tightening string member attachment portion, and a portion connecting the leg portions side of the insertion hole serves as a second bar. The second bar is located on an insertion direction side of the leg portions with respect to a position where an end portion of the plug and the insertion opening of the socket are abutted against each other, in a state where the leg portions are engaged with the socket.Type: GrantFiled: August 12, 2020Date of Patent: January 11, 2022Inventors: Madoka Nanbu, Naoyuki Ito, Eric Chew
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Patent number: 11211564Abstract: An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *?N—*? as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:Type: GrantFiled: April 27, 2018Date of Patent: December 28, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 11107999Abstract: A condensed cyclic compound represented by Formula 1-1 or Formula 1-2 and an organic light-emitting device including the same.Type: GrantFiled: January 5, 2017Date of Patent: August 31, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Jino Lim
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Publication number: 20210184119Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound and the emission layer includes a second compound and a third compound.Type: ApplicationFiled: February 16, 2021Publication date: June 17, 2021Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Publication number: 20210143328Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a first compound, the emission layer includes a second compound and a third compound, and the electron transport region includes a fourth compound and a fifth compound. An organic light-emitting device according to the one or more embodiments may have high efficiency and long lifespan.Type: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 10978643Abstract: An organic light-emitting device includes a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a hole auxiliary layer and the electron transport region includes an electron auxiliary layer. The organic light-emitting device may have high efficiency and long life span characteristics.Type: GrantFiled: July 16, 2015Date of Patent: April 13, 2021Assignee: Samsung Display Co., Ltd.Inventors: Jungsub Lee, Seulong Kim, Younsun Kim, Dongwoo Shin, Naoyuki Ito
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Publication number: 20210059361Abstract: A buckle may include male and female parts. In a case (A) where only the female part is attached to a slider of a slide fastener, the male part includes: a pair of arms respectively provided with locking protrusions; and a connecting rod connecting respective base ends of the pair of arms. The connecting rod is configured to curve away from a space between the locking protrusions of the arms when the arms are bent such that the locking protrusions approach one another. In a case (B) where the male part is attached to a slider of a slide fastener, the male part includes: a slider-holding frame configured to hold the slider; and a pair of arms that extend in the same direction from the slider-holding frame and are respectively provided with locking protrusions. The slider-holding frame includes a frame portion protruded into a space between the pair of arms toward a space between the locking protrusions.Type: ApplicationFiled: August 21, 2020Publication date: March 4, 2021Inventors: Naoyuki ITO, Ryoichiro TAKAZAKURA, Tomoko YAGAMI
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Publication number: 20210052042Abstract: A buckle with a string adjustment portion includes a plug and a socket. The plug includes: a tightening string member attachment portion configured to slidably lock a string member and adjust a length of the string member; and leg portions which are inserted into and engaged with the socket. The socket includes a fitting portion including an insertion opening. An insertion hole through which the string member is inserted is formed to penetrate the tightening string member attachment portion, and a portion connecting the leg portions side of the insertion hole serves as a second bar. The second bar is located on an insertion direction side of the leg portions with respect to a position where an end portion of the plug and the insertion opening of the socket are abutted against each other, in a state where the leg portions are engaged with the socket.Type: ApplicationFiled: August 12, 2020Publication date: February 25, 2021Inventors: Madoka Nanbu, Naoyuki Ito, Eric Chew
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Patent number: 10930853Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a first compound, the emission layer includes a second compound as a fluorescent host and a third compound as a fluorescent dopant, and the electron transport region includes a fourth compound and a fifth compound including, as a ring-forming moiety, a nitrogen-containing heterocyclic group including *?N—*?, wherein the first compound, the fourth compound, and at least one selected from the second compound and the third compound each independently include at least one group selected from groups represented by Formulae A to D:Type: GrantFiled: June 14, 2016Date of Patent: February 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 10897011Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A and 2B.Type: GrantFiled: January 25, 2017Date of Patent: January 19, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dongwoo Shin, Seulong Kim, Younsun Kim, Jungsub Lee, Naoyuki Ito, Jino Lim
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Patent number: 10826000Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7: Ar11(L11)a11-(R11)b11]n11??Formula 1 Ar21(L21)a21-(R21)b21]n21??Formula 2 M(L1)n71(L2)n72.??Formula 7 The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.Type: GrantFiled: October 16, 2015Date of Patent: November 3, 2020Assignee: Samsung Display Co., Ltd.Inventors: Naoyuki Ito, Myeong-Suk Kim, Youn-Sun Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu