Patents by Inventor Kei Asai
Kei 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: 20150313994Abstract: An object of the present invention is to provide surface-modified ferromagnetic iron oxide particles suitable for electromagnetic-induction cancer ablation, which have excellent heat generation properties and also have excellent dispersion stability in a medium for injection. The surface-modified iron oxide particles for cancer ablation of the present invention as a means for achieving the object are characterized in that a block copolymer of polyethylene glycol and polystyrene having a phosphorous acid group in the side chain is bound to the surface of ferromagnetic iron oxide particles having a plate-like shape with a length of 20 to 200 nm and a length-to-thickness ratio of 1.5 to 30 and having magnetic properties such that the coercivity is 30 to 300 Oe, the saturation magnetization is 20 to 80 emu/g, and the squareness ratio of the magnetic hysteresis loop is 0.20 to 0.50.Type: ApplicationFiled: September 10, 2013Publication date: November 5, 2015Applicant: UNIVERSITY OF TSUKUBAInventors: Tatsuya ODA, Yukio NAGASAKI, Kei ASAI, Eiji KITA, Hideto YANAGIHARA, Nobuhiro OHKOHCHI, Mikio KISHIMOTO
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Patent number: 9155847Abstract: A nebulizer includes a main body unit, an atomization unit, and a breath detection unit, which is a function unit for realizing an additional function of the nebulizer. The main body unit and the atomization unit are separable. The atomization unit includes a storage section for storing the medicinal solution, and an atomizing section for spraying the medicinal solution by atomizing the medicinal solution in the storage section. The main body unit includes a control circuit for performing control to operate the atomizing section. The breath detection unit is attachable between the main body unit and the atomization unit.Type: GrantFiled: August 11, 2011Date of Patent: October 13, 2015Assignee: OMRON HEALTHCARE CO., LTD.Inventors: Masao Maeda, Kei Asai, Kentaro Mori, Makoto Tabata, Masayuki Esaki, Toshiro Furusawa, Yusaku Sakoda, Yusuke Kato
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Patent number: 8656935Abstract: In a thin plate member washing apparatus, when a rotary arm member supporting a mesh member holding portion is rotated using a rotary handle, tap water flows over the surface of a mesh member, and medicinal fluid residue deposited on the mesh member is removed.Type: GrantFiled: June 15, 2012Date of Patent: February 25, 2014Assignee: Omron Healthcare Co., Ltd.Inventors: Yusuke Kato, Takanobu Yamauchi, Kei Asai, Makoto Tabata, Yusaku Sakoda
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Patent number: 8627837Abstract: In a thin plate member washing apparatus, when a rotary arm member supporting a mesh member holding portion is rotated using a rotary handle, tap water flows over the surface of a mesh member, and medicinal fluid residue deposited on the mesh member is removed.Type: GrantFiled: June 15, 2012Date of Patent: January 14, 2014Assignee: Omron Healthcare Co., Ltd.Inventors: Yusuke Kato, Takanobu Yamauchi, Kei Asai, Makoto Tabata, Yusaku Sakoda
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Publication number: 20120279533Abstract: In a thin plate member washing apparatus, when a rotary arm member supporting a mesh member holding portion is rotated using a rotary handle, tap water flows over the surface of a mesh member, and medicinal fluid residue deposited on the mesh member is removed.Type: ApplicationFiled: June 15, 2012Publication date: November 8, 2012Applicant: OMRON HEALTHCARE CO., LTD.Inventors: Yusuke KATO, Takanobu YAMAUCHI, Kei ASAI, Makoto TABATA, Yusaku SAKODA
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Patent number: 8286629Abstract: A nebulizer includes a nebulizer body a relay pipe. The nebulizer body includes a connection portion that has an aerosol lead-out port to lead out aerosol, and the relay pipe includes a connection portion that has an aerosol introduction port to introduce the aerosol. The nebulizer body the relay pipe can take a first connection state in which the relay pipe detachably connected to the nebulizer body and a second connection state in which the relay pipe is connected to the nebulizer body so as to be not able to be detached from the nebulizer body. In the first connection state, the aerosol introduction port and the aerosol lead-out port are communicated with each other. In the second connection state, the aerosol lead-out port is blocked by a blocking portion provided in the relay pipe. Therefore, the nebulizer in which reuse of the nebulizer body or relay pipe is simply prohibited after the usage can be provided by the configuration.Type: GrantFiled: February 25, 2009Date of Patent: October 16, 2012Assignee: Omron Healthcare Co., Ltd.Inventors: Masayuki Esaki, Kentaro Mori, Makoto Tabata, Kei Asai, Yosuke Fujii
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Publication number: 20120247518Abstract: In a thin plate member washing apparatus, tap water showering down from water flow holes of a water flow plate makes contact with outer rotary blades and inner rotary blades provided in a rotary supporting member, thereby rotating the rotary supporting member. Moreover, the tap water falling on a mesh member held by a mesh member holding portion flows over a front surface and a back surface of the mesh member based on a centrifugal force due to rotation of the mesh member and removes medicinal fluid residue deposited on the mesh member. The medicinal fluid residue removed from the mesh member is directly carried by the tap water and discharged to the outside of the thin plate member washing apparatus through a fluid outlet opening.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: OMRON HEALTHCARE CO., LTD.Inventors: Masayuki ESAKI, Kei ASAI, Kentaro MORI, Makoto TABATA, Yusaku SAKODA, Toshiro FURUSAWA, Masao MAEDA, Yusuke KATO
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Publication number: 20110290241Abstract: A nebulizer includes a main body unit, an atomization unit, and a breath detection unit, which is a function unit for realizing an additional function of the nebulizer. The main body unit and the atomization unit are separable. The atomization unit includes a storage section for storing the medicinal solution, and an atomizing section for spraying the medicinal solution by atomizing the medicinal solution in the storage section. The main body unit includes a control circuit for performing control to operate the atomizing section. The breath detection unit is attachable between the main body unit and the atomization unit.Type: ApplicationFiled: August 11, 2011Publication date: December 1, 2011Applicant: OMRON HEALTHCARE CO., LTD.Inventors: Masao MAEDA, Kei ASAI, Kentaro MORI, Makoto TABATA, Masayuki ESAKI, Toshiro FURUSAWA, Yusaku SAKODA, Yusuke KATO
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Publication number: 20100319687Abstract: A nebulizer includes a nebulizer body and a relay pipe. The nebulizer body includes a connection portion that has an aerosol lead-out port to lead out aerosol, and the relay pipe includes a connection portion that has an aerosol introduction port to introduce the aerosol. The nebulizer body and the relay pipe can take a first connection state in which the relay pipe is detachably connected to the nebulizer body and a second connection state in which the relay pipe is connected to the nebulizer body so as to be not able to be detached from the nebulizer body. In the first connection state, the aerosol introduction port and the aerosol lead-out port are communicated with each other. In the second connection state, the aerosol lead-out port is blocked by a blocking portion provided in the relay pipe. Therefore, the nebulizer in which reuse of the nebulizer body or relay pipe is simply prohibited after the usage can be provided by the configuration.Type: ApplicationFiled: February 25, 2009Publication date: December 23, 2010Applicant: OMRON HEALTHCARE CO., LTD.Inventors: Masayuki Esaki, Kentaro Mori, Makoto Tabata, Kei Asai, Yosuke Fujii
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Patent number: 7147132Abstract: An ampoule for containing a specified amount of liquid inside to be used for a liquid atomizer has a tubular main body having an open front part including an outlet at one end and an open back part at an opposite end. A piston is inserted into the main body from the open front part in an airtight manner and is slidable axially inside the main body. Another piston is inserted into the main body from the open back part in an airtight manner so as to be slidable axially inside the main body. The two pistons form a reservoir in between for storing a liquid. The forwardly located piston has a weakened part on the side that faces the reservoir. As a sharp member extending from the other piston penetrates this weakened, the reservoir and the outlet become connected and the liquid inside the reservoir is discharged.Type: GrantFiled: December 22, 2003Date of Patent: December 12, 2006Assignee: Omron Healthcare Co., Ltd.Inventors: Makoto Tabata, Kei Asai, Shinichi Ito
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Patent number: 6913208Abstract: A liquid atomizer includes a main body and an ampoule holder detachably attached to the main body for holding ampoules in an annular formation. The main body has an atomizing part for atomizing the liquid discharged from outlets of the ampoules. The outlet of each of these ampoules can be disposed proximal to the atomizing part by moving the ampoules around the annular formation. Positioning devices are between the main body and the ampoule holder for positioning the ampoule holder properly with respect to the main body. The ampoule holder holds the ampoules such that each of the ampoules can move between an advanced position and a retracted position. The outlet of each ampoule moves into the atomizing part when the ampoule moves to the advanced position. The ampoule holder is able to undergo a rotary motion with respect to the main body when each of the ampoules is at the retracted position.Type: GrantFiled: December 22, 2003Date of Patent: July 5, 2005Assignee: OMRON Healthcare Co., Ltd.Inventors: Makoto Tabata, Kei Asai, Shinichi Ito
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Patent number: 6901926Abstract: A bush (31) is fitted into a housing (10) and an ultrasonic pump (12) is supported liquid tightly by the bush (31). The ultrasonic pump (12) is constituted by a pump shaft (21) formed to include a pump bore (22) passing through it axially and having upper and lower ends which are open, and an ultrasonic vibrator (23) mounted on the pump shaft (21) in the vicinity of the midpoint thereof in terms of the axial direction. A liquid vessel.(16) is mounted in the housing (10) in a freely attachable and detachable manner, and the lower end portion of the pump shaft (21) is received inside the liquid vessel (16). A cap (15) is freely detachably attached to the upper end portion of the housing (10) so as to cover the upper end portion of the pump shaft (21). The top side of the cap (15) is provided with a spray port (51), and a step portion (57) is formed for supporting a mesh plate (14) at the periphery thereof at a position below the spray port (51).Type: GrantFiled: July 23, 2003Date of Patent: June 7, 2005Assignee: Omron CorporationInventors: Hirohito Yamamoto, Kei Asai
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Patent number: 6863224Abstract: A bottle unit (30) of a liquid atomizing apparatus is provided with: a bottle section (31) reserving a chemical liquid (L); a horn oscillating member (40) to whose a distal end the liquid (L) in the bottle section (31) is fed; and a mesh member (1) having a number of fine pores (2), and mounted to an end surface of the distal end (41) of the horn oscillating member (40) in contact therewith. The bottle section (31) is constituted of a large capacity section (B) and a small capacity section (b) in communication with the large capacity section (B) through an opening (32), and opposing to the distal end (41) of the horn oscillating member (40). The small capacity section (b) is formed such that the liquid (L?) therein is in contact with a point in the proximity of the contact section between the distal end (41) of the horn oscillating member (40) and the mesh member (1).Type: GrantFiled: October 1, 2001Date of Patent: March 8, 2005Assignee: Omron CorporationInventors: Takao Terada, Kei Asai, Masato Arai, Shinichi Itoh, Shinya Tanaka, Masashi Osuga, Toshiji Takahashi
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Publication number: 20040188458Abstract: An ampoule for containing a specified amount of liquid inside to be used for a liquid atomizer has a tubular main body having an open front part including an outlet at one end and an open back part at an opposite end. A piston is inserted into the main body from the open front part in an airtight manner and is slidable axially inside the main body. Another piston is inserted into the main body from the open back part in an airtight manner so as to be slidable axially inside the main body. The two pistons form a reservoir in between for storing a liquid. The forwardly located piston has a weakened part on the side that faces the reservoir. As a sharp member extending from the other piston penetrates this weakened, the reservoir and the outlet become connected and the liquid inside the reservoir is discharged.Type: ApplicationFiled: December 22, 2003Publication date: September 30, 2004Applicant: OMRON Healthcare Co., Ltd.Inventors: Makoto Tabata, Kei Asai, Shinichi Ito
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Publication number: 20040188546Abstract: A liquid atomizer includes a main body and an ampoule holder detachably attached to the main body for holding ampoules in an annular formation. The main body has an atomizing part for atomizing the liquid discharged from outlets of the ampoules. The outlet of each of these ampoules can be disposed proximal to the atomizing part by moving the ampoules around the annular formation. Positioning devices are between the main body and the ampoule holder for positioning the ampoule holder properly with respect to the main body. The ampoule holder holds the ampoules such that each of the ampoules can move between an advanced position and a retracted position. The outlet of each ampoule moves into the atomizing part when the ampoule moves to the advanced position. The ampoule holder is able to undergo a rotary motion with respect to the main body when each of the ampoules is at the retracted position.Type: ApplicationFiled: December 22, 2003Publication date: September 30, 2004Applicant: OMRON Healthcare Co., Ltd.Inventors: Makoto Tabata, Kei Asai, Shinichi Ito
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Publication number: 20040050953Abstract: A bottle unit (30) of a liquid atomizing apparatus is provided with: a bottle section (31) reserving a chemical liquid (L); a horn oscillating member (40) to whose a distal end the liquid (L) in the bottle section (31) is fed; and a mesh member (1) having a number of fine pores (2), and mounted to an end surface of the distal end (41) of the horn oscillating member (40) in contact therewith. The bottle section (31) is constituted of a large capacity section (B) and a small capacity section (b) in communication with the large capacity section (B) through an opening (32), and opposing to the distal end (41) of the horn oscillating member (40). The small capacity section (b) is formed such that the liquid (L′) therein is in contact with a point in the proximity of the contact section between the distal end (41) of the horn oscillating member (40) and the mesh member (1).Type: ApplicationFiled: April 1, 2003Publication date: March 18, 2004Inventors: Takao Terada, Kei Asai, Masato Arai, Shinichi Itoh, Shinya Tanaka, Masashi Osuga, Toshiji Takahashi
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Publication number: 20040045547Abstract: A bush (31) is fitted into a housing (10) and an ultrasonic pump (12) is supported liquid tightly by the bush (31). The ultrasonic pump (12) is constituted by a pump shaft (21) formed to include a pump bore (22) passing through it axially and having upper and lower ends which are open, and an ultrasonic vibrator (23) mounted on the pump shaft (21) in the vicinity of the midpoint thereof in terms of the axial direction. A liquid vessel.(16) is mounted in the housing (10) in a freely attachable and detachable manner, and the lower end portion of the pump shaft (21) is received inside the liquid vessel (16). A cap (15) is freely detachably attached to the upper end portion of the housing (10) so as to cover the upper end portion of the pump shaft (21). The top side of the cap (15) is provided with a spray port (51), and a step portion (57) is formed for supporting a mesh plate (14) at the periphery thereof at a position below the spray port (51).Type: ApplicationFiled: July 23, 2003Publication date: March 11, 2004Applicant: OMRON CorporationInventors: Hirohito Yamamoto, Kei Asai
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Publication number: 20040031488Abstract: A secondary reservoir (16) is filled with a liquid medicine by a fixed amount via a liquid transfer path (18) from a primary reservoir (10) for storing the liquid medicine to be nebulized. When a liquid supply button (40) is slid to left, an operating rod (42) pushes a piston (20) and power supply switch turns on. As piston (20) moves to left, the liquid medicine in secondary reservoir (16) is pushed, thereby moving a valve (22) to left and opening a liquid transfer path (24). Then, a nebulizing part is supplied with the fixed amount of liquid medicine from secondary reservoir (16), and thus performs nebulization. Thus, a liquid nebulizing apparatus is attained, in which a constant amount of liquid is transferred to the nebulizing part to stabilize the nebulization, and in which such a function is realized at low costs.Type: ApplicationFiled: April 4, 2003Publication date: February 19, 2004Inventors: Takao Terada, Kei Asai, Masato Arai, Jutaro Nishimura, Makoto Tabata, Shinya Tanaka, Shinichi Itoh
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Patent number: 6651650Abstract: A bush (31) is fitted into a housing (10) and an ultrasonic pump (12) is supported liquid tightly by the bush (31). The ultrasonic pump (12) is constituted by a pump shaft (21) formed to include a pump bore (22) passing through it axially and having upper and lower ends which are open, and an ultrasonic vibrator (23) mounted on the pump shaft (21) in the vicinity of the midpoint thereof in terms of the axial direction. A liquid vessel (16) is mounted in the housing (10) in a freely attachable and detachable manner, and the lower end portion of the pump shaft (21) is received inside the liquid vessel (16). A cap (15) is freely detachably attached to the upper end portion of the housing (10) so as to cover the upper end portion of the pump shaft (21). The top side of the cap (15) is provided with a spray port (51), and a step portion (57) is formed for supporting a mesh plate (14) at the periphery thereof at a position below the spray port (51).Type: GrantFiled: October 4, 1994Date of Patent: November 25, 2003Assignee: Omron CorporationInventors: Hirohito Yamamoto, Kei Asai, Masaru Obata
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Publication number: 20030056789Abstract: An inhaler has a tubular case defining inside a flow route for medicament. A capsule containing the medicament serving as its source is on the upstream side and a mouthpiece is on the opposite downstream side. A rotor with a convex surface on the upstream side is rotatably placed in the flow route inside the tubular case. A motor rotates the rotor when a patient breathes in the medicament such that a shearing force will operate on the medicament particles and the medicament is separated from lactose.Type: ApplicationFiled: September 10, 2002Publication date: March 27, 2003Applicant: OMRON CorporationInventors: Hiroshi Takano, Kei Asai, Makoto Tabata