Patents by Inventor Keigo Matsunaga
Keigo Matsunaga 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: 11929230Abstract: A large current electron beam is stably emitted from an electron gun of a charged particle beam device. The electron gun of the charged particle beam device includes: a SE tip 202; a suppressor 303 disposed rearward of a distal end of the SE tip; a cup-shaped extraction electrode 204 including a bottom surface and a cylindrical portion and enclosing the SE tip and the suppressor; and an insulator 208 holding the suppressor and the extraction electrode. A shield electrode 301 of a conductive metal having a cylindrical portion 302 is provided between the suppressor and the cylindrical portion of the extraction electrode. A voltage lower than a voltage of the SE tip is applied to the shield electrode.Type: GrantFiled: April 18, 2019Date of Patent: March 12, 2024Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Keigo Kasuya, Akira Ikegami, Kazuhiro Honda, Masahiro Fukuta, Takashi Doi, Souichi Katagiri, Aki Takei, Soichiro Matsunaga
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Publication number: 20230219167Abstract: A laser processing method of laser processing a workpiece made of at least one sheet of metallic foil includes: generating laser light by supplying pulsed pumping energy to a laser medium, the laser light including an optical pulse component and a continuous light component that is continuous with the optical pulse component and temporally after the optical pulse component; irradiating a surface of the workpiece with the laser light; and limiting duration of the continuous light component such that a ratio of energy of the continuous light component to energy of the optical pulse component is equal to or less than a predetermined value.Type: ApplicationFiled: March 17, 2023Publication date: July 13, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Atsushi OGINO, Ryosuke TAMURA, Kousuke KASHIWAGI, Masakazu YOSHIHARA, Keisuke TOMINAGA, Takashi KAYAHARA, Keigo MATSUNAGA
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Publication number: 20230150057Abstract: A laser cutting method for metal foil includes: cutting a processing target by laser by intermittently applying a pulse of laser beam to a surface of a metal foil serving as the processing target at a frequency of 1 [MHz] or less.Type: ApplicationFiled: January 18, 2023Publication date: May 18, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Keigo MATSUNAGA, Taro MURAYAMA, Toshiaki SAKAI, Takashi KAYAHARA, Takashi SHIGEMATSU
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Publication number: 20230001508Abstract: A welding method includes: irradiating a surface of a workpiece with a laser light that moves relatively to the workpiece in a sweep direction; and performing welding by melting a part of the workpiece irradiated with the laser light. The laser light includes a plurality of beams, the plurality of beams include at least one main beam and at least one sub beam smaller in power than the main beam, a main power region including the at least one main beam and a sub power region including the at least one sub beam are formed on the surface, and a minimum distance between centers of adjacent ones of the plurality of beams on the surface is 75 ?m or less.Type: ApplicationFiled: September 14, 2022Publication date: January 5, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Keigo MATSUNAGA, Takashi KAYAHARA, Tomomichi YASUOKA, Kazuki TAKADA, Takashi SHIGEMATSU
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Publication number: 20220334565Abstract: A low toughness workpiece cutting apparatus, a low toughness workpiece manufacturing method and a low toughness workpiece manufacturing program for predicting an occurrence of defect and/or non-occurrence of defect before a cutting process of low toughness material. A defect prediction device is provided with a storage device, a processor and an interface. The storage device stores tool data that represent physical characteristics and a shape of a tool, cutting data that represent a group of parameters of a cutting process to be performed to a workpiece by use of the tool and material data that represent physical characteristics and a shape of the workpiece. The processor performs an analysis of deformation of the workpiece due to a cutting force and an analysis of fracture due to the deformation, and performs a prediction of an occurrence of defect and/or a non-occurrence of defect of the workpiece due to the cutting process.Type: ApplicationFiled: January 15, 2021Publication date: October 20, 2022Inventors: Yukio NAIKI, Shiro NAGAMI, Keigo MATSUNAGA, Koji MIZUTANI, Eiji SHAMOTO, Takehiro HAYASAKA, Shota YOSHINO
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Publication number: 20210178514Abstract: A welding method includes: emitting laser beam toward a workpiece including a metal to melt and weld a part of the workpiece, the part being where the laser beam has been emitted to. Further, the laser beam includes a main power region and at least one auxiliary power region, a power of the main power region is larger than a power of each of the at least one auxiliary power region, and a ratio between the power of the main power region and the total of powers of the at least one auxiliary power region is in a range of 144:1 to 1:9.Type: ApplicationFiled: February 24, 2021Publication date: June 17, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Tomomichi YASUOKA, Takashi KAYAHARA, Ryosuke NISHII, Koji KIRIKAE, Keigo MATSUNAGA, Takashi SHIGEMATSU
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Publication number: 20110167393Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: ApplicationFiled: March 15, 2011Publication date: July 7, 2011Applicant: FUJITSU LIMITEDInventors: Eiichi TANAKA, Yoko FUJII, Keigo MATSUNAGA, Tomohiro YOSHII, Keizo ITO, Yoshikazu WATANABE
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Publication number: 20090100470Abstract: For enabling the user to acquire the desired information in a short period of time with a simple operation, an information processing device comprises: an extraction module that extracts at least one set of presenting information to be presented to a user from within a plurality of information groups; a control module that displays the plural pieces of presenting information extracted per information group by the extraction module on one display screen; and a display unit capable of displaying the display screen.Type: ApplicationFiled: August 6, 2008Publication date: April 16, 2009Applicant: FUJITSU LIMITEDInventors: Yuki Yai, Masashi Urushihara, Keigo Matsunaga, Yoshiro Munesada, Kanako Ariya, Hiroyuki Komai
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Patent number: 7280648Abstract: A terminal apparatus is provided that has a display unit; communication means which makes communication with other apparatuses and enables reception of multiple types of incoming calls; and a control unit which controls display contents on the display unit. The control unit displays, as incoming-call displays on the display unit, types and caller information of unanswered incoming calls out of the incoming calls through the communication means such that order of the unanswered incoming calls can be comprehended.Type: GrantFiled: June 7, 2004Date of Patent: October 9, 2007Assignee: Fujitsu LimitedInventors: Keigo Matsunaga, Kenichi Izumi
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Publication number: 20070067743Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: ApplicationFiled: November 21, 2006Publication date: March 22, 2007Applicant: FUJITSU LIMITEDInventors: Eiichi Tanaka, Yoko Fujii, Keigo Matsunaga, Tomohiro Yoshii, Keizo Ito, Yoshikazu Watanabe
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Patent number: 7155260Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: GrantFiled: February 5, 2002Date of Patent: December 26, 2006Assignee: Fujitsu LimitedInventors: Eiichi Tanaka, Yoko Fujii, Keigo Matsunaga, Tomohiro Yoshii, Keizo Ito, Yoshikazu Watanabe
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Publication number: 20060030371Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: ApplicationFiled: October 3, 2005Publication date: February 9, 2006Applicant: Fujitsu LimitedInventors: Eiichi Tanaka, Yoko Fujii, Keigo Matsunaga, Tomohiro Yoshii, Keizo Ito, Yoshikazu Watanabe
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Publication number: 20050233769Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: ApplicationFiled: June 20, 2005Publication date: October 20, 2005Applicant: FUJITSU LIMITEDInventors: Eiichi Tanaka, Yoko Fujii, Keigo Matsunaga, Tomohiro Yoshii, Keizo Ito, Yoshikazu Watanabe
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Publication number: 20050143137Abstract: A terminal apparatus is provided that has a first and a second display units; and a control unit which controls display contents of the first and the second display units respectively. The control unit displays, on the second display unit, status information as well as an operation key associated with the display contents displayed on the first display unit. The control unit changes the display contents displayed on the first display unit in response to an input with the operation key.Type: ApplicationFiled: April 27, 2004Publication date: June 30, 2005Applicant: FUJITSU LIMITEDInventors: Keigo Matsunaga, Takahiro Yamazaki, Kenichi Izumi
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Publication number: 20050141686Abstract: A terminal apparatus is provided that has a display unit; communication means which makes communication with other apparatuses and enables reception of multiple types of incoming calls; and a control unit which controls display contents on the display unit. The control unit displays, as incoming-call displays on the display unit, types and caller information of unanswered incoming calls out of the incoming calls through the communication means such that order of the unanswered incoming calls can be comprehended.Type: ApplicationFiled: June 7, 2004Publication date: June 30, 2005Applicant: FUJITSU LIMITEDInventors: Keigo Matsunaga, Kenichi Izumi
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Publication number: 20030073466Abstract: A portable terminal displays a menu screen in which small screens respectively corresponding to categories are shown on display positions of a display unit, wherein the display positions respectively correspond to operation positions of an operation panel.Type: ApplicationFiled: February 5, 2002Publication date: April 17, 2003Applicant: Fujitsu LimitedInventors: Eiichi Tanaka, Yoko Fujii, Keigo Matsunaga, Tomohiro Yoshii, Keizo Ito, Yoshikazu Watanabe
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Publication number: 20020140627Abstract: An electronic equipment is provided with a main display section, an auxiliary display section which displays status information of the electronic equipment, a plurality of buttons provided above and/or below the auxiliary display section, and a controller. The controller displays definitions or meanings of the plurality of buttons, within the auxiliary display section at positions corresponding to each of the plurality of buttons, depending on an operation mode of the electronic equipment.Type: ApplicationFiled: August 31, 2001Publication date: October 3, 2002Applicant: FUJITSU LIMITEDInventors: Hisashi Ohki, Katsunori Masamune, Masafumi Okumura, Masato Ageta, Kazuhiro Takeda, Keigo Matsunaga, Takashi Suda
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Publication number: 20010028366Abstract: An electronic equipment is provided with a main display section, an auxiliary display section having a display area smaller than that of the main display section, and a controller displaying a plurality of status information of the electronic equipment in the auxiliary display section by a combination of a message using characters and at least one of symbols and a color display and/or a blinking display of the auxiliary display section.Type: ApplicationFiled: March 22, 2001Publication date: October 11, 2001Inventors: Hisashi Ohki, Toshihisa Masuzawa, Ryoji Hirayama, Yuji Aoyama, Tetsushi Hatakeyama, Naoyuki Inoue, Masafumi Okumura, Akio Sotokawa, Eisuke Nakada, Toshio Oka, Kazuhiro Takeda, Masato Ageta, Takashi Suda, Keigo Matsunaga, Mitsuru Kodama