Patents by Inventor Jun Asai
Jun Asai 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: 20240148664Abstract: Provided are a lipid and a composition that can effectively deliver an introduction compound such as a nucleic acid to a target cell, tissue, or the like in vivo.Type: ApplicationFiled: April 11, 2022Publication date: May 9, 2024Applicants: SOGO PHARMACEUTICAL CO., LTD., SHIZUOKA PREFECTURAL UNIVERSITY CORPORATIONInventors: Tetsuo KOANA, Jun HAYASHIDA, Toshinori TAKAKI, Yohei TANAKA, Nahoko OZAKI, Tomohiro ASAI
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Publication number: 20240106334Abstract: A switching control circuit for a power supply circuit that includes a transformer including primary and secondary coils, and first and second transistors controlling a current flowing through the primary coil. The power supply circuit generates an output voltage at a target level. The switching control circuit controls switching of the first and second transistors. The switching control circuit includes: a drive signal output circuit configured to output drive signals according to a normal mode, when the output voltage is lower than a first level, and output the drive signals according to a burst mode, when the output voltage is higher than the first level; and a driver circuit configured to switch the first and second transistors in response to the drive signals. The drive signal output circuit reduces a first time period in the burst mode, in response to the output voltage rising above the first level.Type: ApplicationFiled: August 24, 2023Publication date: March 28, 2024Applicant: FUJI ELECTRIC CO., LTD.Inventors: Hiroaki MATSUMOTO, Jun ASAI
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Patent number: 11938729Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.Type: GrantFiled: August 3, 2021Date of Patent: March 26, 2024Assignee: Canon Kabushiki KaishaInventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
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Publication number: 20240092080Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.Type: ApplicationFiled: November 22, 2023Publication date: March 21, 2024Inventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
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Publication number: 20240083167Abstract: A liquid ejection head includes a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Kazuhiro Asai, Koji Sasaki, Jun Yamamuro, Shingo Nagata
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Publication number: 20210228621Abstract: This invention provides a means capable of treating skin ulcers. More specifically, the invention provides a composition for preventing and/or treating skin wounds, the composition comprising carbon monoxide.Type: ApplicationFiled: May 16, 2019Publication date: July 29, 2021Applicants: SUMITOMO SEIKA CHEMICALS CO., LTD., KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATIONInventors: Tomohisa TAKAGI, Jun ASAI, Tetsuya OKAYAMA, Katsura MIURA, Shigeki SAKAUE
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Patent number: 10888041Abstract: A substrate working system includes a component mounter that mounts a component on a substrate, and an inspection unit provided in the component mounter or a device downstream of the component mounter and that performs a substrate inspection different from a normal substrate inspection when an abnormality related to a mounting operation is detected in the component mounter.Type: GrantFiled: October 14, 2015Date of Patent: January 5, 2021Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Kazushi Takama, Jun Asai
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Patent number: 10201120Abstract: A component mounting apparatus having a feature in which the component mounting apparatus includes a component mounting unit including a nozzle and a distance detector for optically detecting a distance between a component held by the mounting nozzle and a board, and an illuminated region formed by the distance detector is located in a vicinity of a portion obtained by projecting the mounting nozzle onto the board.Type: GrantFiled: October 17, 2014Date of Patent: February 5, 2019Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Isao Takahira, Tomohiro Inoue, Hiroshi Ikeda, Jun Asai
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Publication number: 20180310446Abstract: A substrate working system includes a component mounter that mounts a component on a substrate, and an inspection unit provided in the component mounter or a device downstream of the component mounter and that performs a substrate inspection different from a normal substrate inspection when an abnormality related to a mounting operation is detected in the component mounter.Type: ApplicationFiled: October 14, 2015Publication date: October 25, 2018Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Kazushi TAKAMA, Jun ASAI
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Publication number: 20160255754Abstract: A component mounting apparatus having a feature in which the component mounting apparatus includes a component mounting unit including a nozzle and a distance detector for optically detecting a distance between a component held by the mounting nozzle and a board, and an illuminated region formed by the distance detector is located in a vicinity of a portion obtained by projecting the mounting nozzle onto the board.Type: ApplicationFiled: October 17, 2014Publication date: September 1, 2016Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Isao TAKAHIRA, Tomohiro INOUE, Hiroshi IKEDA, Jun ASAI
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Patent number: 7546678Abstract: This invention provides an electronic component mounting apparatus which can detects an electronic component held by a suction nozzle without fail after a mounting operation of electronic components on a printed board and perform various processes in a case where the electronic component is held by the suction nozzle.Type: GrantFiled: September 29, 2004Date of Patent: June 16, 2009Assignee: Hitachi High-Tech Instruments Co., Ltd.Inventors: Jun Asai, Akira Aoki, Shigeru Kuribara, Akihiro Kawai
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Publication number: 20060021215Abstract: The invention is directed to performing electronic component mounting operations by the suction nozzles of the mounting heads in each of the plurality of the rotary tables independently, moving each of the positioning tables for positioning a printed board in a component mounting position independently, and performing the electronic component mounting operation on the plurality of the printed boards independently. A component feeding device moves a plurality of component feeding tables having a plurality of component feeding units in an arraying direction thereof respectively and independently. Mounting heads having a plurality of suction nozzles for picking up electronic components from the component feeding devices respectively are provided at predetermined intervals corresponding to intermittent pitches on an outer circumference of two rotary tables intermittently rotating.Type: ApplicationFiled: July 29, 2005Publication date: February 2, 2006Applicant: Hitachi High-Tech Instruments Co., Ltd.Inventors: Yoshinori Kano, Yoshinao Usui, Ikuo Takemura, Yuji Moriya, Haruhiko Yamaguchi, Manabu Okamoto, Koichi Izuhara, Kenji Kurata, Jun Asai
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Publication number: 20060000086Abstract: Recognition of a position of a printed board is performed both before and after a chip component is mounted on the printed board. When a difference between the positions recognized before and after that is out of a predetermined allowable range, the printed board is treated as a defective. A CPU compares positions of a positioning mark provided on a printed board recognized both before and after a chip component is mounted on the printed board, the positions being taken an image by a board recognition camera and recognized by a recognition processing device. The CPU checks whether or not a difference between the positions is within a predetermined range stored in a RAM, that is, within a range from ?0.100 mm to +0.0100 mm, in both X and Y directions. When judging that the difference is within the range, the CPU controls an electronic component mounting apparatus to stop because of an error.Type: ApplicationFiled: June 14, 2005Publication date: January 5, 2006Applicant: Hitachi High-Tech Instruments Co., Ltd.Inventors: Ikuo Takemura, Manabu Okamoto, Sigeru Iida, Seiji Onishi, Jun Asai
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Publication number: 20050102826Abstract: This invention provides an electronic component mounting apparatus which can detects an electronic component held by a suction nozzle without fail after a mounting operation of electronic components on a printed board and perform various processes in a case where the electronic component is held by the suction nozzle.Type: ApplicationFiled: September 29, 2004Publication date: May 19, 2005Applicant: Hitachi High-Tech Instruments Co., Ltd.Inventors: Jun Asai, Akira Aoki, Shigeru Kuribara, Akihiro Kawai
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Patent number: 6836638Abstract: A cleaning device includes a cleaning member, which is contactable to a moving image bearing member to clean a surface of the image bearing member; a holder holds the cleaning member; and a vibrator. The holder is movable in a direction substantially perpendicular to a surface of the image bearing member. The vibrating means is supported by the holder.Type: GrantFiled: December 1, 2003Date of Patent: December 28, 2004Assignee: Canon Kabushiki KaishaInventors: Kazuhumi Muto, Jun Asai, Koki Watanabe, Keizo Ogara
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Patent number: 6822767Abstract: In a case where minute dirt is lain between light source and an original, since the light source moves in case of the fixing original reading which is an original reading system of reading an original image by fixing the original, the dirt is momently lighted by the light source and influence by the dirt for the read image is appeared in sight by only a minute dot. However, in case of the shifting original reading of reading the original image by shifting the original, since the relationship between the light source and the dirt is in a fixed state, the light source is always to light the dirt and the influence by the dirt for the read image is appeared in sight by a line or a plane. Therefore, in the present invention, edge emphasis degree of edge emphasis processing for the read image data is varied in accordance with a fact that the original reading system is the fixing original reading or the shifting original reading. Accordingly, the influence by the dirt in the shifting original reading can be reduced.Type: GrantFiled: July 5, 2001Date of Patent: November 23, 2004Assignee: Canon Kabushiki KaishaInventors: Ryuji Kawano, Jun Asai, Yuji Kamiya
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Patent number: 6801747Abstract: A cleaning device includes a cleaning member for cleaning a surface of an image bearing member while it is moving, a holding member for holding the cleaning member, a vibrating member which per se is vibratable, and a controller for controlling operation of the vibrating member. The holding member is movable toward and away from the image bearing member, the vibrating member is held on the holding member, and the controller actuates the vibrating member upon stoppage of movement of the image bearing member.Type: GrantFiled: July 25, 2002Date of Patent: October 5, 2004Assignee: Canon Kabushiki KaishaInventors: Keizo Ogara, Jun Asai, Koki Watanabe
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Publication number: 20040109712Abstract: A cleaning device comprising a cleaning member contactable to a moving image bearing member to clean a surface of the image bearing member; holding means for holding the cleaning member; vibrating means which is vibratable; wherein the holding means this movable toward and away from the image bearing member, and wherein the vibrating means is supported on the holding means.Type: ApplicationFiled: December 1, 2003Publication date: June 10, 2004Applicant: Canon Kabushiki KaishaInventors: Kazuhumi Muto, Jun Asai, Koki Watanabe, Keizo Ogara
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Patent number: 6694122Abstract: A cleaning device includes a cleaning member, which is contactable to a moving image bearing member to clean a surface of the image bearing member; a holder holds the cleaning member; and a vibrator. The holder is movable in a direction substantially perpendicular to a surface of the image bearing member. The vibrating means is supported by the holder.Type: GrantFiled: March 12, 2002Date of Patent: February 17, 2004Assignee: Canon Kabushiki KaishaInventors: Kazuhumi Muto, Jun Asai, Koki Watanabe, Keizo Ogara
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Patent number: 6636719Abstract: An image forming apparatus includes an image bearing member; a driver for driving the image bearing member; a latent image forming device for forming an electrostatic latent image on the image bearing member; a developing device for developing the electrostatic latent image on the image bearing member with a developer; a cleaning member, contacted to the image bearing member, for cleaning a surface of the image bearing member; a vibration imparting device for vibrating the cleaning member; and a controller for causing the latent image forming means to form an electrostatic pattern for attracting the developer deposited on the cleaning member and for causing the device to move the electrostatic pattern to a contact portion where the cleaning member is contacted to the image bearing member.Type: GrantFiled: July 31, 2002Date of Patent: October 21, 2003Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Kunishi, Jun Asai, Keizo Ogara