Patents by Inventor Suguru Nakagawa
Suguru Nakagawa 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).
-
Publication number: 20240075410Abstract: There is provided a gas solution supply apparatus capable of preventing bubbles from being generated in use at a point-of-use even if gas solution to be provided to a point-of-use has a high concentration. The gas solution supply apparatus 1 includes: a gas dissolving unit 4 that dissolves a source gas in a source liquid to produce a first gas solution; a first gas-liquid separator 10 that stores the first gas solution produced and produces a second gas solution through gas-liquid separation of the first gas solution; a pressure reducer 17 that depressurizes the second gas solution produced in the first gas-liquid separator 10; and a second gas-liquid separator 12 that stores the depressurized second gas solution and produces a third gas solution through gas-liquid separation of the second gas solution. The third gas solution is supplied to a point-of-use.Type: ApplicationFiled: August 2, 2023Publication date: March 7, 2024Inventors: Suguru OZAWA, Yuji ARAKI, Yoichi NAKAGAWA, Toshifumi WATANABE, Risa KIMURA, Ryuta KATO
-
Patent number: 11739946Abstract: A cooking apparatus is provided. The cooking apparatus includes a body, a heating part disposed on an upper surface of the body and configured to heat an object to be heated, and an outlet part arranged on opposite sides of the heating part and configured to allow air to be discharged to an upper side of the body. The outlet part includes an outlet to which air is discharged, and a louver arranged on the outlet and configured to guide an airflow discharged from the outlet part to allow the airflow discharged from the outlet part to mix with an airflow generated by the heating part, thereby forming an ascending airflow directed from a front side to a rear side of the body.Type: GrantFiled: December 18, 2020Date of Patent: August 29, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Suguru Nakagawa, Keita Mori
-
Patent number: 11614243Abstract: The present disclosure is to reduce a blowing resistance while securing a mechanical strength of a fan guard. An outdoor unit 100 includes a housing 10 in which an air discharge port X is formed on an upper wall 11, a blowing fan 20 disposed inside the housing 10 to correspond to the air discharge port X, and a fan guard 30 configured to cover the blowing fan 20, wherein the fan guard 30 includes a plurality of annular ribs 32 disposed to be spaced apart from each other in a radial direction of the blowing fan 20, and radial ribs 33 configured to connect a plurality of the annular ribs 32, and wherein the radial ribs 33 are formed such that free ends 3a thereof are bent in the same direction in a cross section orthogonal to a stretching direction and a pair of opposing piece portions 3b including each of the free ends 3a are in surface contact with each other.Type: GrantFiled: December 13, 2018Date of Patent: March 28, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Takeshi Takahara, Hideki Ishikawa, Suguru Nakagawa, JeiMin Choi, JaeSung Yoo, Joonho Yoon, DongSik Jin
-
Patent number: 11408679Abstract: A shoe dryer including a main body, a shoe receiver provided inside the main body and configured to receive a shoe, a blower configured to blow air toward the shoe received in the shoe receiving portion, a camera configured to obtain an image of the shoe by photographing the shoe received in the shoe receiver, and a control device configured to recognize information about the shoe from the image of the shoe obtained by the camera, and control a direction of air blown by the blower based on the information about the shoe.Type: GrantFiled: September 9, 2020Date of Patent: August 9, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Hiroto Ohnari, Daisuke Fukuoka, Kazutoshi Takenoshita, Suguru Nakagawa, Toshiyuki Fujiyoshi
-
Patent number: 11085654Abstract: Disclosed herein is an outdoor unit for an air conditioner including a blowing apparatus for reducing suction loss of a propeller fan generated in corners of a housing and achieving high efficiency of blowing and low noise. The blowing apparatus includes a housing including a wall in which an outlet is formed, a propeller fan positioned in the inside of the housing, the propeller fan facing the outlet, and a diffuser positioned at a discharging side of the propeller fan, and forming the outlet, wherein the diffuser includes an inclined surface inclined with respect to a rotation axis of the propeller fan, and an inclination angle of the inclined surface to the rotation axis of the propeller fan changes according to a circumferential direction of the diffuser.Type: GrantFiled: November 14, 2017Date of Patent: August 10, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Shinji Goto, Hiroaki Kurihara, Suguru Nakagawa
-
Publication number: 20210199307Abstract: A cooking apparatus is provided. The cooking apparatus includes a body, a heating part disposed on an upper surface of the body and configured to heat an object to be heated, and an outlet part arranged on opposite sides of the heating part and configured to allow air to be discharged to an upper side of the body. The outlet part includes an outlet to which air is discharged, and a louver arranged on the outlet and configured to guide an airflow discharged from the outlet part to allow the airflow discharged from the outlet part to mix with an airflow generated by the heating part, thereby forming an ascending airflow directed from a front side to a rear side of the body.Type: ApplicationFiled: December 18, 2020Publication date: July 1, 2021Inventors: Suguru NAKAGAWA, Keita MORI
-
Publication number: 20210071950Abstract: A shoe dryer including a main body, a shoe receiver provided inside the main body and configured to receive a shoe, a blower configured to blow air toward the shoe received in the shoe receiving portion, a camera configured to obtain an image of the shoe by photographing the shoe received in the shoe receiver, and a control device configured to recognize information about the shoe from the image of the shoe obtained by the camera, and control a direction of air blown by the blower based on the information about the shoe.Type: ApplicationFiled: September 9, 2020Publication date: March 11, 2021Inventors: Hiroto OHNARI, Daisuke FUKUOKA, Kazutoshi TAKENOSHITA, Suguru NAKAGAWA, Toshiyuki FUJIYOSHI
-
Publication number: 20200348032Abstract: The present disclosure is to reduce a blowing resistance while securing a mechanical strength of a fan guard. An outdoor unit 100 includes a housing 10 in which an air discharge port X is formed on an upper wall 11, a blowing fan 20 disposed inside the housing 10 to correspond to the air discharge port X, and a fan guard 30 configured to cover the blowing fan 20, wherein the fan guard 30 includes a plurality of annular ribs 32 disposed to be spaced apart from each other in a radial direction of the blowing fan 20, and radial ribs 33 configured to connect a plurality of the annular ribs 32, and wherein the radial ribs 33 are formed such that free ends 3a thereof are bent in the same direction in a cross section orthogonal to a stretching direction and a pair of opposing piece portions 3b including each of the free ends 3a are in surface contact with each other.Type: ApplicationFiled: December 13, 2018Publication date: November 5, 2020Inventors: Takeshi TAKAHARA, Hideki ISHIKAWA, Suguru NAKAGAWA, JeiMin CHOI, JaeSung YOO, Joonho YOON, DongSik JIN
-
Publication number: 20190316790Abstract: Disclosed herein is an outdoor unit for an air conditioner including a blowing apparatus for reducing suction loss of a propeller fan generated in corners of a housing and achieving high efficiency of blowing and low noise. The blowing apparatus includes a housing including a wall in which an outlet is formed, a propeller fan positioned in the inside of the housing, the propeller fan facing the outlet, and a diffuser positioned at a discharging side of the propeller fan, and forming the outlet, wherein the diffuser includes an inclined surface inclined with respect to a rotation axis of the propeller fan, and an inclination angle of the inclined surface to the rotation axis of the propeller fan changes according to a circumferential direction of the diffuser.Type: ApplicationFiled: November 14, 2017Publication date: October 17, 2019Inventors: Shinji GOTO, Hiroaki KURIHARA, Suguru NAKAGAWA
-
Patent number: 10400781Abstract: Disclosed herein are a turbo fan, which is capable of implementing high efficiency of ventilation and reducing noise by providing a bended portion being bended in a reverse direction against a rotational direction of a wing between a leading edge and a tailing edge thereof to reattach an air separation generated at a negative pressure surface of the wing, and an air conditioner having the same.Type: GrantFiled: May 27, 2016Date of Patent: September 3, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Suguru Nakagawa
-
Patent number: 10393150Abstract: Provided are a blower, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency, and an outdoor unit using the same. The present invention comprises: a bell mouth part spaced apart at a predetermined distance in the radial direction with respect to an outer circumferential end of a propeller fan; and a diffuser part installed on the downstream side of the bell mouth part, and having a flow path area which is enlarged from the upstream side toward the downstream side with a larger magnification rate than the magnification rate of the flow path area in the downstream end of the bell mouth part; and a stator part having a plurality of stators, wherein the stator part is arranged within the diffuser part.Type: GrantFiled: June 2, 2016Date of Patent: August 27, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Suguru Nakagawa, Seiji Sato
-
Patent number: 9822801Abstract: Provided are a blower, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency, and an outdoor unit using the same. The present disclosure comprises: a bell mouth part spaced apart at a predetermined distance in the radial direction with respect to an outer circumferential end of a propeller fan; and a diffuser part installed on the downstream side of the bell mouth part, and having a flow path area which is enlarged from the upstream side toward the downstream side with a larger magnification rate than the magnification rate of the flow path area in the downstream end of the bell mouth part; and a stator part having a plurality of stators, wherein the stator part is arranged within the diffuser part.Type: GrantFiled: December 2, 2014Date of Patent: November 21, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Suguru Nakagawa, Seiji Sato
-
Patent number: 9556881Abstract: A propeller fan may strongly draw the flow toward the inner circumferential side and greatly improve the pressure efficiency by degrading the tendency of the flow near the pressure surface to be inclined toward the outer circumferential side at the trailing edge of the blade. The blade is provided with a recessed portion raised toward a suction surface at a central portion of a trailing edge of the blade in a radial direction such that the recessed portion is open at least on a pressure surface of the blade, the recessed portion extending from the trailing edge toward a leading edge of the blade, and a cross section of the recessed portion taken in a radial direction is provided with a pair of lateral portions rising at a predetermined angle with respect to the suction surface and facing each other. The span-wise width of the recessed portion between the lateral portions increases as the recessed portion extends from an upstream side to a downstream side.Type: GrantFiled: September 23, 2013Date of Patent: January 31, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sato Seiji, Suguru Nakagawa
-
Publication number: 20160356284Abstract: Disclosed herein are a turbo fan, which is capable of implementing high efficiency of ventilation and reducing noise by providing a bended portion being bended in a reverse direction against a rotational direction of a wing between a leading edge and a tailing edge thereof to reattach an air separation generated at a negative pressure surface of the wing, and an air conditioner having the same.Type: ApplicationFiled: May 27, 2016Publication date: December 8, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Suguru NAKAGAWA
-
Patent number: 8721280Abstract: A propeller fan includes a hub 1 and a plurality of blades 2, which are radially arranged on the outer circumference of the hub 1. A plurality of bent surface-shaped recesses 21 to 23 are formed on the positive pressure surface at a trailing edge 2b of each blade 2. The recesses 21 to 23 extend in the rotation direction of the fan and are arranged in a radial direction. Protrusions 24, 25 are each formed between adjacent pair of the recesses 21 to 23. The bent surfaces of the recesses 21 to 23 and the protrusions 24, 25 reduces air flow caused by centrifugal force. This allows the air flow on the positive pressure surface of the blade 2 to easily flow along the recesses 21 to 23. As a result, air flow does not concentrate on the outer periphery of the blade 2, which reduces the differences in the velocity and volume of air flow between the outer tip 2c of the blade 2 and the hub 1. Accordingly, the blade 2 functions as a whole.Type: GrantFiled: January 5, 2009Date of Patent: May 13, 2014Assignee: Daikin Industries, Ltd.Inventors: Suguru Nakagawa, Jirou Yamamoto
-
Publication number: 20140086754Abstract: A propeller fan may strongly draw the flow toward the inner circumferential side and greatly improve the pressure efficiency by degrading the tendency of the flow near the pressure surface to be inclined toward the outer circumferential side at the trailing edge of the blade. The blade is provided with a recessed portion raised toward a suction surface at a central portion of a trailing edge of the blade in a radial direction such that the recessed portion is open at least on a pressure surface of the blade, the recessed portion extending from the trailing edge toward a leading edge of the blade, and a cross section of the recessed portion taken in a radial direction is provided with a pair of lateral portions rising at a predetermined angle with respect to the suction surface and facing each other. The span-wise width of the recessed portion between the lateral portions increases as the recessed portion extends from an upstream side to a downstream side.Type: ApplicationFiled: September 23, 2013Publication date: March 27, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sato Seiji, Suguru Nakagawa
-
Patent number: 8512004Abstract: A propeller fan has a gap between a bellmouth and each blade tip. A leakage flow is thus produced from a positive pressure surface of a blade toward a negative pressure surface of the blade via the gap. The leakage flow develops while flowing from the leading edge of each blade toward the trailing edge, thus forming a blade tip vortex. This increases blowing noise and raises the input of the fan motor. In order to suppress the blade tip vortex caused by the leakage flow, the present invention includes recessed portions and projected portions, which are alternately formed in a portion of a blade surface of each blade corresponding to the blade tip.Type: GrantFiled: July 11, 2008Date of Patent: August 20, 2013Assignee: Daikin Industries, Ltd.Inventors: Suguru Nakagawa, Zhiming Zheng
-
Publication number: 20110000653Abstract: An air delivery unit includes a casing, an air delivery device arranged in a fan passage in the casing, and a fan guard that is arranged at an air outlet of the casing and has an air blowing surface having a grill structure and a hollow frame wall portion. An air blowing opening is formed in the frame wall portion of the fan guard. This structure allows the air to be blown also from the opening of the frame wall portion of the fan guard. This reduces the amount and the speed of the air blown from the air blowing surface of the fan guard having the grill structure. As a result, rise of static pressure of the air delivery device is suppressed and noise caused by interference between bars of an air blowing grill and the air is reduced.Type: ApplicationFiled: July 9, 2008Publication date: January 6, 2011Inventors: Suguru Nakagawa, Jirou Yamamoto, Masahiro Shigemori
-
Publication number: 20100322779Abstract: A propeller fan has a gap between a bellmouth and each blade tip. A leakage flow is thus produced from a positive pressure surface of a blade toward a negative pressure surface of the blade via the gap. The leakage flow develops while flowing from the leading edge of each blade toward the trailing edge, thus forming a blade tip vortex. This increases blowing noise and raises the input of the fan motor. In order to suppress the blade tip vortex caused by the leakage flow, the present invention includes recessed portions and projected portions, which are alternately formed in a portion of a blade surface of each blade corresponding to the blade tip.Type: ApplicationFiled: July 11, 2008Publication date: December 23, 2010Inventors: Suguru Nakagawa, Zhiming Zheng
-
Patent number: RE49709Abstract: Provided are a blower, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency, and an outdoor unit using the same. The present disclosure comprises: a bell mouth part spaced apart at a predetermined distance in the radial direction with respect to an outer circumferential end of a propeller fan; and a diffuser part installed on the downstream side of the bell mouth part, and having a flow path area which is enlarged from the upstream side toward the downstream side with a larger magnification rate than the magnification rate of the flow path area in the downstream end of the bell mouth part; and a stator part having a plurality of stators, wherein the stator part is arranged within the diffuser part.Type: GrantFiled: November 8, 2018Date of Patent: October 24, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Suguru Nakagawa, Seiji Sato