Patents by Inventor Shinichi Kikkawa
Shinichi Kikkawa 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: 20240011152Abstract: A dielectric composition comprises a crystal of an oxynitride. A peak attributed to absence of a center of symmetry of the crystal of the oxynitride is detected by Raman spectroscopy of the dielectric composition within a Raman shift range of 500 cm?1 or less.Type: ApplicationFiled: July 7, 2023Publication date: January 11, 2024Applicants: TDK CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Kumiko YAMAZAKI, Shuto KANO, Yuji MASUBUCHI, Shinichi KIKKAWA
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Publication number: 20220194861Abstract: A sintered body containing polycrystalline grains of a metal oxynitride containing at least two metal elements, wherein Ba and at least one metal element of a crystal phase of the sintered body are contained in a triple point that is not a void between the polycrystalline grains. A method for producing the sintered body includes sintering a mixture of at least a metal oxynitride as a main component and a sintering aid containing cyanamide in an atmosphere containing nitrogen or a rare gas or in a reduced-pressure atmosphere of 10 Pa or less while applying a mechanical pressure with a retention time at a maximum heating temperature during the sintering set to 1 minute to 10 minutes.Type: ApplicationFiled: March 9, 2022Publication date: June 23, 2022Inventors: Yuji MASUBUCHI, Akira HOSONO, Shinichi KIKKAWA, Masashi INOGUCHI
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Patent number: 10696598Abstract: To provide a dielectric porcelain composition and an electronic component that demonstrate ferroelectricity. A dielectric porcelain composition that is characterized by having a perovskite-type oxynitride as a principal component and by including a polycrystalline body that demonstrates ferroelectricity.Type: GrantFiled: February 1, 2017Date of Patent: June 30, 2020Assignees: TDK CORPORATION, NATIONAL UNIVERSITY CORPORATION HOLLAIDO UNIVERSITYInventors: Kumiko Yamazaki, Yuki Nagamine, Takeshi Shibahara, Shinichi Kikkawa, Yuji Masubuchi
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Publication number: 20190202744Abstract: To provide a dielectric porcelain composition and an electronic component that demonstrate ferroelectricity. A dielectric porcelain composition that is characterized by having a perovskite-type oxynitride as a principal component and by including a polycrystalline body that demonstrates ferroelectricity.Type: ApplicationFiled: February 1, 2017Publication date: July 4, 2019Applicants: TDK CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Kumiko YAMAZAKI, Yuki NAGAMINE, Takeshi SHIBAHARA, Shinichi KIKKAWA, Yuji MASUBUCHI
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Publication number: 20070196260Abstract: The present invention relate to a method for producing a transition metal ion bridging positive electrode material, wherein a mono-valent transition metal complex ion is intercalated into an interlayer space of layered transition metal oxide containing therein an alkali metal complex ion. The method of the present invention provides safe and simple operation without using acid and organic compound required in the prior art. The method of the present invention also provides an advantageous method in terms of cost performance by employing the procedure for producing a positive electrode via the layered transition metal oxide containing alkali metal complex ion within the layers, preferably via the layered manganese oxide buserite.Type: ApplicationFiled: July 8, 2005Publication date: August 23, 2007Applicant: National University Corporation Hokkaido UniversityInventors: Shinichi Kikkawa, Hiroki Tamura, Takashi Takeda
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Publication number: 20020158236Abstract: Ar indium zinc oxide based hexagonal layered compound characterized as being represented by the general formula (ZnO)n.In2O3 (m=2-20) and having a mean thickness of 0.001-0.3 &mgr;m and a mean aspect ratio (mean major diameter/mean thickness) of 3-1,000.Type: ApplicationFiled: October 3, 2001Publication date: October 31, 2002Inventors: Shinichi Kikkawa, Hidetoshi Ogawa, Shoji Hosokawa
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Patent number: 6319485Abstract: A magnetic material made up of an assembly of particles substantially consisting of an &agr;″-Fe16N2 crystal having a body-centered tetragonal system (bct). The magnetic material has a high saturated magnetic flux density and is directly synthesized by reacting fine particles of &agr;-Fe and a nitrogen-containing gas at a temperature of 200° C. or lower. By the synthesis of this invention, &agr;″-Fe16N2, which is a metastable compound conventionally deposited accompanied with phase transformation of crystallization from a martensite phase of &agr;′-Fe(N), is obtained as an isolated bulk substance in a single phase.Type: GrantFiled: January 19, 1999Date of Patent: November 20, 2001Assignee: Dowa Mining Co., Ltd.Inventors: Akira Nagatomi, Fumikazu Kanamaru, Shinichi Kikkawa
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Patent number: 5260742Abstract: An electrophotographic copying machine includes a card loading portion for loading a memory card, and the memory card having a memory in which copy data such as copied quantity can be stored is loaded into the card loading portion. Copying condition such as copying quantity and copying magnification being set by an operator in a first mode is displayed on a quantity display and magnification display. When a reset key and an insertion key are simultaneously operated, the electrophotographic copying machine is changed to a second mode. In the second mode, the copy data being stored in the memory of the memory card is displayed on the quantity display and magnification display.Type: GrantFiled: October 24, 1991Date of Patent: November 9, 1993Assignee: Sanyo Electric Co., Ltd.Inventor: Shinichi Kikkawa
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Patent number: 5043762Abstract: A copy system includes a combination of a tablet and an input pen for inputting copy condition information such as a control condition and an editing condition, and a copying machine for forming a copy image in accordance with a copy condition information as inputted. An IC card insertion portions are respectively formed on the tablets and the copying machine. When the control condition, for example, a copy quantity and a copy magnification, and the editing condition, for example, an editing function and a positional data are inputted by the input pen and the tablet in the state where the IC card is loaded to the tablet, the inputted copy condition information is stored in the IC card. Thereafter, the IC card is unloaded from the tablet and inserted to the copying machine. The copy condition information is led from the inserted IC card to the copying machine.Type: GrantFiled: February 5, 1988Date of Patent: August 27, 1991Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Iwaki, Kiyoshi Sakamoto, Shinichi Kikkawa, Akira Inada, Shuuji Watanabe, Akihiko Sutoh
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Patent number: 5030990Abstract: An apparatus for inputting image forming condition includes a combination of a tablet and an input pen. An IC card insertion portion is formed on the tablet. In the state that an IC card is loaded to the tablet, when a control condition, for example, a copy quantity and copy magnification and/or an editing condition, for example, editing function and positional data are inputted by operating the tablet by means of the input pen, the inputted image forming condition is stored into the IC card. Thereafter, by unloading the IC card from the tablet and loading the same into a copying machine, a copying image of an original is formed by the copying machine in accordance with the image forming condition read out from the IC card.Type: GrantFiled: July 15, 1987Date of Patent: July 9, 1991Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Iwaki, Kiyoshi Sakamoto, Akira Inada, Shinichi Kikkawa, Yasushi Handa, Shuuji Watanabe, Akihiko Sutoh, Nobuaki Masaki, Yoshihiro Murai
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Patent number: 4949134Abstract: An image forming apparatus includes an intermediate tray wherein a copied paper on which an image has been formed is stored. In the case of a double-face copy, the copied paper is stored in the intermediate tray in a manner that a surface on which an image has been formed is faced upward and, in the case of a multi-copy, the copied paper is stored in the intermediate tray in a manner that a surface on which an image has been formed is faced downward. The intermediate tray has two movable guide members which sandwiches the copied paper stored in the intermediate tray in a width direction thereof. The movable guide members are moved so as to go and come back once at every timing when a sheet of copied paper is stored in the intermediate tray, whereby both side ends of the copied paper are pushed by the movable guide members to be aligned.Type: GrantFiled: March 6, 1989Date of Patent: August 14, 1990Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Iwaki, Yoshiharu Mita, Akihiko Suto, Shinichi Kikkawa, Yasushi Handa, Sadaki Kodera
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Patent number: 4764789Abstract: An apparatus for inputting image forming condition includes a display having item displaying portion in which a plurality of items of image forming condition for controlling image forming process are respectively displayed for each item and cursor displaying portion in which a plurality of cursors are formed so as to correspond to the respective items. A desired one of a plurality of cursors included in the cursor displaying portion is selectively displayed by a cursor key. When a given item is designated by the cursor key and a change key is operated in that state, content of that item is changed for every operations of the change key. The content lastly changed is inputted as image forming condition of that item.Type: GrantFiled: July 15, 1987Date of Patent: August 16, 1988Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Iwaki, Kiyoshi Sakamoto, Akira Inada, Shinichi Kikkawa
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Patent number: 4645328Abstract: An apparatus for scanning an original includes a light source which is supported by a carriage movable in a scanning direction. A shield member is formed on the carriage. A first photointerrupter is provided at a home position of the carriage and a second photointerrupter is provided to a moving direction therefrom. When a forward going of the carriage is started from the home position and continued by a distance corresponding to the size of paper and/or the copy magnification, the light source is turned off and the carriage starts a returning movement. During the returning movement, the carriage travels further as far as the prescribed distance after the second photointerrupter being shielded by the shield member, thereafter a braking is applied on the carriage.Type: GrantFiled: January 23, 1985Date of Patent: February 24, 1987Assignee: Sanyo Electric Co., LtdInventors: Kenhachi Shiraki, Shinichi Kikkawa, Takaharu Izawa, Yoshifumi Miyazaki, Torahiko Nonoue, Etsuzo Moriki
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Patent number: 4564288Abstract: An electrostatic recording apparatus such as an electrophotographic copying machine includes a mobile light source being able to move reciprocatively and exposing an original copy at its forward going motion. Reflected light from the original copy exposed by the light source produces an image on a photosensitive drum through an image-forming lens, and an electrostatic latent image is formed on the photosensitive drum. This electrostatic latent image is developed with a toner to form a visible image, and the toner image is transferred onto a paper fed from a paper feeding part. Papers of different sizes can be fed from the paper feeding part, and in response to this paper size, data such as moving speed and moving distance of the light source are read from the ROM, being given to a motor controller. As a function of the paper size, different returning speed data are set in advance, and accordingly, the light source can return at a speed responding to the paper size.Type: GrantFiled: January 14, 1985Date of Patent: January 14, 1986Assignee: Sanyo Electric Co., Ltd.Inventors: Torahiko Nonoue, Etsuzo Moriki, Yoshifumi Miyazaki, Takahal Izawa, Shinichi Kikkawa, Kenhachi Shiraki