Patents by Inventor Kenichiro Sunaba
Kenichiro Sunaba 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).
-
Patent number: 7311742Abstract: An electric vacuum cleaner includes an inlet port through which a suctioned air stream including dirt particles pass and a centrifugal separation member having a substantially circular space therein. The centrifugal separation member has a swirl portion to swirl the dust-laden suction air stream along an inner surface of the centrifugal separation member. By forming swirl passageway between the swirl portion and the inner surface of the centrifugal separation member, the high velocity swirling air stream can be made and consequently an efficiency of separating the dirt particles from the suction air and collecting the dirt particles can be improved.Type: GrantFiled: January 9, 2004Date of Patent: December 25, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Mori, Toru Odachi, Kenichiro Sunaba, Tetsuo Imai
-
Publication number: 20040143929Abstract: An electric vacuum cleaner includes an inlet port through which a suctioned air stream including dirt particles pass and a centrifugal separation member having a substantially circular space therein. The centrifugal separation member has a swirl portion to swirl the dust-laden suction air stream along an inner surface of the centrifugal separation member. By forming swirl passageway between the swirl portion and the inner surface of the centrifugal separation member, the high velocity swirling air stream can be made and consequently an efficiency of separating the dirt particles from the suction air and collecting the dirt particles can be improved.Type: ApplicationFiled: January 9, 2004Publication date: July 29, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroshi Mori, Toru Odachi, Kenichiro Sunaba, Tetsuo Imai
-
Patent number: 6678916Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: GrantFiled: October 31, 2002Date of Patent: January 20, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Patent number: 6588051Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: GrantFiled: January 29, 2001Date of Patent: July 8, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Patent number: 6574827Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: GrantFiled: April 10, 2002Date of Patent: June 10, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Publication number: 20030051307Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: ApplicationFiled: October 31, 2002Publication date: March 20, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Publication number: 20020112316Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: ApplicationFiled: April 10, 2002Publication date: August 22, 2002Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Publication number: 20010018780Abstract: An electric vacuum cleaner according to the present invention includes a cleaner main body 16, and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19, and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration, the vacuum cleaner is prevented from falling down when it is set upright. Further, the safety in use of the vacuum cleaner will be improved. Also, the user is able to easily use the vacuum cleaner. Furthermore, it is possible to finish assembling the component parts only at the rear of the vacuum cleaner.Type: ApplicationFiled: January 29, 2001Publication date: September 6, 2001Inventors: Kiyoshi Hashizume, Koichi Ito, Kenichiro Sunaba
-
Patent number: 5634600Abstract: The refuse processing machine of the invention reduces the bulk of the waste by heating and drying the waste in the waste container by heating means. The grinding and stirring means is operated while heating and drying, and the waste is ground and stirred. The waste is ground into small pieces by the grinding and stirring means, and heat of the heating means is hence smoothly transmitted to the inside of the waste, so that the moisture in the waste may be removed efficiently.Type: GrantFiled: April 8, 1994Date of Patent: June 3, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadashi Kubota, Motomichi Mishima, Yukio Hayashida, Hisao Tsunaga, Hideaki Sakatani, Hirofumi Nishida, Katsuyuki Ishibashi, Tatsuo Kikawa, Syuji Asada, Tatsuo Fujita, Yukiyoshi Nishikori, Hidenori Kitamura, Syuzo Tokumitu, Kenichiro Sunaba