Patents by Inventor Seiichi Maruyama
Seiichi Maruyama 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: 11654711Abstract: A writing tool includes a refill having an ink reservoir tube formed to be a straight cylinder whose wall thickness is less than 0.56 mm; and a writing tip or a relay member holding the writing tip attached to a first end of the ink reservoir tube, wherein the refill is detachably attached to a barrel, wherein in the refill, amounting strength between the writing tip or the relay member holding the writing tip and the ink reservoir tube is set higher than a mounting strength between the barrel and a connecting portion of the ink reservoir tube. There is provided a writing tool that can prevent the occurrence of a problem such as leakage of ink at a time of replacement of refills and perform replacement of refills smoothly.Type: GrantFiled: June 17, 2019Date of Patent: May 23, 2023Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takayuki Ikai, Seiichi Maruyama, Kiyoshi Iwamoto
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Patent number: 11084316Abstract: An applicator in which an applying body consisting of a brush is surely attached to a front barrel to solve a problem that a part of the brush remains stuck inside the front barrel to cause failure of attachment when the applying body is being attached to the front barrel. The applicator includes a front barrel provided on the front end side of a rear barrel, and an applying body formed of a brush with a flange portion at its rear end and arranged inside the front barrel. A receiving part of the flange portion of the applying body and the inner face of the front barrel are in contact with each other in a non-surface contact manner.Type: GrantFiled: May 14, 2018Date of Patent: August 10, 2021Assignee: Mitsubishi Pencil Company, LimitedInventor: Seiichi Maruyama
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Publication number: 20210178803Abstract: A writing tool includes a refill having an ink reservoir tube formed to be a straight cylinder whose wall thickness is less than 0.56 mm; and a writing tip or a relay member holding the writing tip attached to a first end of the ink reservoir tube, wherein the refill is detachably attached to a barrel, wherein in the refill, amounting strength between the writing tip or the relay member holding the writing tip and the ink reservoir tube is set higher than a mounting strength between the barrel and a connecting portion of the ink reservoir tube. There is provided a writing tool that can prevent the occurrence of a problem such as leakage of ink at a time of replacement of refills and perform replacement of refills smoothly.Type: ApplicationFiled: June 17, 2019Publication date: June 17, 2021Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takayuki IKAI, Seiichi MARUYAMA, Kiyoshi IWAMOTO
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Publication number: 20200130403Abstract: The present invention to provide an applicator which can solve the problems such as attachment failure of an applying body of a brush due to part of the brush stuck remaining inside the front barrel when the brush-formed applying body is attached to the front barrel to thereby reliably attach the brush-formed applying body to the front barrel. The applicator includes: a rear barrel 20 storing an application liquid in a storage portion 21 inside a barrel cylinder; a front barrel 10 provided on the front end side of the rear barrel 20; and an applying body 40, formed of a brush with a flange portion 41 at its rear end, and arranged inside the front barrel 10 so as to supply the application liquid to the applying body 40 from the storage portion 21 inside the rear barrel 20, and is characterized in that a receiving part 42 of the flange portion 41 of the applying body 40 and the inner face of the front barrel 10 are in contact with each other in a non-surface contact manner.Type: ApplicationFiled: May 14, 2018Publication date: April 30, 2020Inventor: Seiichi MARUYAMA
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Patent number: 10299561Abstract: To provide a makeup tool that is excellent in design and can perform stable application of a cosmetic, the makeup tool includes a barrel cylinder storing the cosmetic; and an application part attached to one end of the barrel cylinder, in which the application part includes an applying element capable of feeding the cosmetic from the barrel cylinder to apply the cosmetic, and a retainer that holds the applying element, and the retainer is formed of a hard material presenting visibility.Type: GrantFiled: June 28, 2016Date of Patent: May 28, 2019Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Seiichi Maruyama, Shigeki Ooba, Hisami Tamano
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Patent number: 9545813Abstract: A ballpoint pen wherein an outer member (50) covering the outer circumference of a holder (21) covers a section that reaches as far as a narrowed section (23) of the holder (21) and has an outer member tip end portion (51). An ink spreads between the writing ball (30) and the contact section of the writing surface and between the outer member tip end portion (51) and the contact section of the writing surface, in which the writing ball (30) and the outer member tip end portion (51) are in contact with the writing surface at the same time. The relative position of the outer member (50) and the holder (21) can be changed from a holder protruding position to a holder retracted position wherein the writing ball (30) and the tip section of the outer member (50) can be in contact with the writing surface at the same time.Type: GrantFiled: June 7, 2013Date of Patent: January 17, 2017Assignee: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takeo Fukumoto, Seiichi Maruyama, Kazuhiko Furukawa
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Publication number: 20160374453Abstract: To provide a makeup tool that is excellent in design and can perform stable application of a cosmetic, the makeup tool includes a barrel cylinder storing the cosmetic; and an application part attached to one end of the barrel cylinder, in which the application part includes an applying element capable of feeding the cosmetic from the barrel cylinder to apply the cosmetic, and a retainer that holds the applying element, and the retainer is formed of a hard material presenting visibility.Type: ApplicationFiled: June 28, 2016Publication date: December 29, 2016Inventors: Seiichi MARUYAMA, Shigeki OOBA, Hisami TAMANO
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Patent number: 9162515Abstract: A writing implement that prevents flow of air into an ink tank and prevents writing failure while allowing for productivity. The writing implement includes a writing implement refill having: an ink tank composed of films storing ink; a joint connected to a tip of the ink tank; and a writing tip connected to a tip of the joint. An inner circumferential surface of the tip of the ink tank covers an outer circumferential surface of a rear end of the joint. A covering member of a ring shape covers from outside an area where the tip of the ink tank covers the outer circumferential surface of the rear end of the joint.Type: GrantFiled: December 18, 2013Date of Patent: October 20, 2015Assignee: MITSUBISHI PENCIL CO., LTD.Inventors: Seiichi Maruyama, Takeo Fukumoto, Kazuhiko Furukawa
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Publication number: 20150165812Abstract: A ballpoint pen wherein an outer member (50) covering the outer circumference of a holder (21) covers a section that reaches as far as a narrowed section (23) of the holder (21) and has an outer member tip end portion (51). An ink spreads between the writing ball (30) and the contact section of the writing surface and between the outer member tip end portion (51) and the contact section of the writing surface, in which the writing ball (30) and the outer member tip end portion (51) are in contact with the writing surface at the same time. The relative position of the outer member (50) and the holder (21) can be changed from a holder protruding position to a holder retracted position wherein the writing ball (30) and the tip section of the outer member (50) can be in contact with the writing surface at the same time.Type: ApplicationFiled: June 7, 2013Publication date: June 18, 2015Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Takeo Fukumoto, Seiichi Maruyama, Kazuhiko Furukawa
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Publication number: 20140140752Abstract: A problem to be solved is to provide a writing implement at low cost that prevents flow of air into an ink tank and prevents writing failure while allowing for productivity. A writing implement refill 10 comprises: an ink tank 20 composed of films 21 storing ink; a joint 30 connected to a tip of the ink tank 20; and a writing tip 40 connected to a tip of the joint 30. An inner circumferential surface of the tip of the ink tank 20 covers an outer circumferential surface of a rear end of the joint 30. A covering member 50 of a ring shape covers from outside an area where the tip of the ink tank 20 covers the outer circumferential surface of the rear end of the joint 30.Type: ApplicationFiled: December 18, 2013Publication date: May 22, 2014Applicant: MITSUBISHI PENCIL COMPANY, LIMITEDInventors: Seiichi Maruyama, Takeo Fukumoto, Kazuhiko Furukawa
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Patent number: 8328704Abstract: A roller for transporting a recording medium includes an inner layer having a shaft hole through which a rotating shaft passes; and an outer layer formed outside the inner layer and brought into contact with the recording medium. At least a first end surface of the inner layer in a direction along the rotating shaft is located inside the outer layer remote from end surfaces of the outer layer in the direction along the rotating shaft.Type: GrantFiled: August 17, 2007Date of Patent: December 11, 2012Assignee: Seiko Epson CorporationInventors: Toshikazu Kotaka, Naohiro Ueyama, Yasuo Motohashi, Satoru Watanabe, Seiichi Maruyama, Shoichi Horiuchi, Mayumi Kinoshita
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Publication number: 20080044206Abstract: A roller for transporting a recording medium includes an inner layer having a shaft hole through which a rotating shaft passes; and an outer layer formed outside the inner layer and brought into contact with the recording medium. At least a first end surface of the inner layer in a direction along the rotating shaft is located inside the outer layer remote from end surfaces of the outer layer in the direction along the rotating shaft.Type: ApplicationFiled: August 17, 2007Publication date: February 21, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Toshikazu KOTAKA, Naohiro UEYAMA, Yasuo MOTOHASHI, Satoru WATANABE, Seiichi MARUYAMA, Shoichi HORIUCHI, Mayumi KINOSHITA
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Patent number: 5464951Abstract: In a tablet unit comprising a plurality of X-axis magnetic wires and a plurality of Y-axis magnetic wires arranged on a tablet board in a matrix fashion for detecting an abscissa and an ordinate, respectively, each of the plurality of X-axis and Y-axis magnetic wires is made of an amorphous material. The plurality of X-axis magnetic wires are divided into first through N-th groups. Any one of the X-axis magnetic wires belonging to a particular group is arranged to adjoin two other X-axis magnetic wires belonging to different groups to form a specific combination of three different groups so that those X-axis magnetic wires belonging to the particular group are spaced from one another by at least a predetermined distance and that the specific combination is unique and does not repeatedly appear. The X-axis magnetic wires belonging to each group are connected to one another in series or in parallel.Type: GrantFiled: October 26, 1993Date of Patent: November 7, 1995Assignee: Mitsumi Electric Co., Ltd.Inventor: Seiichi Maruyama
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Patent number: 4675773Abstract: A transmission line protection system arranged such that a leakage current detector is provided at an end of an insulating device such as an insulator connected at one end to a corresponding one of arms of a steel tower and connected at the other end to a transmission line of each phase, thereby detecting an arrester leakage current flowing in the transmission line of each phase, an output signal of the leakage current detector being led to a repeater through an optical fiber cable, an output of the repeater being transferred to a control/supervisory board in a substation through an optical fiber cable. In the control/supervisory board, preferably, a received digital signal which was converted from an analog signal at said leakage current detector is displayed on a cathode ray tube. In such an arrangement, it is possible to smoothly perform supervision of the status of the transmission lines without causing maloperations due to influences from the transmission lines.Type: GrantFiled: November 5, 1985Date of Patent: June 23, 1987Assignees: Hitachi, Ltd., The Chugoku Electric Power Co., Inc.Inventors: Shingo Shirakawa, Seiichi Maruyama, Seizo Nakano, Eichi Okamoto, Kenji Kohara
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Patent number: 4587592Abstract: A zinc oxide lightning protector, wherein end plates are mounted at the ends of an insulator and a zinc oxide element section is arranged between the cover plates. Support metal members are mounted on the cover plates between the zinc oxide element section and the insulator to support an insulation cylinder therebetween. A space is formed between at least an end of an insulation cylinder and a corresponding cover plate to absorb the expansion or contraction of the insulation cylinder due to temperature changes, thus preventing the insulation cylinder from deforming. The elements are eccentrically arranged against the insulation cylinder, to thereby cause the gas flow along peripheral direction so that the laminar flow is changed into a turbulent flow. Thus, the heat conduction is improved to improve the radiation characteristic of the zinc oxide element section.Type: GrantFiled: September 24, 1984Date of Patent: May 6, 1986Assignee: Hitachi, Ltd.Inventors: Kouichi Nakano, Seiichi Maruyama, Seizo Nakano, Masatomo Sato
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Patent number: 4321651Abstract: In an enclosed-type zinc-oxide surge arrester with a grounded tank filled with an insulating medium, and a non-linear resistor assemblage which is connected at one end to a high voltage conductor and at the other end to the ground potential portion within the grounded tank, two or more ring-like shield means such as shield rings are disposed on the high voltage conductor side of the non-linear resistor assemblage at given distances. The use of the ring-like shield means makes more uniform the voltages shared by the respective non-linear resistors. The ring-like shield means may be formed with the configuration and diameter, and the number of them used being properly selected.Type: GrantFiled: January 30, 1980Date of Patent: March 23, 1982Assignee: Hitachi, Ltd.Inventors: Jun Ozawa, Yoshi Akatsu, Katsuji Shindo, Akio Mizukoshi, Seizo Nakano, Seiichi Maruyama, Shingo Shirakawa