Patents by Inventor Yasuhiko Ishikawa
Yasuhiko Ishikawa 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: 20220401247Abstract: A pelvis correction belt includes a support member (10) and a press member (20). The press member is provided with multiple belt members (22, 24) placed in upper and lower portions and having elasticity in a longitudinal direction, and the belt members (22, 24) press the pelvis by coupling coupling parts (30, 40) of the press member. The pelvis correction belt is further provided with a first pressing auxiliary belt (50) and a second pressing auxiliary belt (60), each of which extends to both left and right sides from the support member (10) and has a combining part (52, 62) on its tip that can combine with one of the coupling parts (40). By combining the combining parts (52, 62) with the coupling parts (30, 40), the first pressing auxiliary belt (50) and the second pressing auxiliary belt (60) respectively press left and right portions on the rear side of the pelvis.Type: ApplicationFiled: March 5, 2020Publication date: December 22, 2022Inventor: Yasuhiko ISHIKAWA
-
Publication number: 20220211565Abstract: A treatment table (1) includes a chest support part (3) and a leg support part (4) that respectively support a chest and legs of a patient while the patient lies on the treatment table, and a lower-back support part (20) that support a lower-back of the patient, and is located between the chest support part and the leg support part, wherein the lower back support part is provided with multiple divided members (21) that are divided in patient's body-axis and body-width directions, and supporting bodies that support the divided members (21) movably in an up-down direction. The treatment table offers to perform an effective lower-back treatment with an inexpensive configuration.Type: ApplicationFiled: February 17, 2020Publication date: July 7, 2022Inventor: Yasuhiko ISHIKAWA
-
Patent number: 10741715Abstract: The present invention addresses the issue of providing: a light-receiving element that has an absorption layer of germanium (Ge), is capable of efficiently receiving near infrared light having a large light-reception sensitivity in the absorption layer, from a free space, and has high productivity and low production cost; and a near infrared light detector comprising said light-receiving element. This light-receiving element 10 has, laminated in order upon a substrate 20, an amplification layer 30 containing silicon (Si), an absorption layer 40 containing germanium (Ge), and an antireflection layer 50. The amplification layer 30 has, in order upon the substrate 20, at least an n-doped n-Si layer 31 and a p-doped p-Si layer 33. The absorption layer 40 has at least a p-doped p-Ge layer 42.Type: GrantFiled: July 20, 2017Date of Patent: August 11, 2020Assignees: Konica Minolta, Inc., The University of TokyoInventors: Yuichi Takeuchi, Takuji Hatano, Yasuhiko Ishikawa
-
Publication number: 20190267509Abstract: Light-receiving element that has an absorption layer of germanium (Ge), is capable of efficiently receiving near infrared light having a large light-reception sensitivity in the absorption layer, from a free space, and has high productivity and low production costs; and a near infrared light detector comprising said light-receiving element. This light-receiving element 10 has, laminated in order upon a substrate 20, an amplification layer 30 containing silicon (Si) and an absorption layer 40 containing germanium (Ge). The amplification layer 30 has, in order upon the substrate 20, at least an n-doped n-Si layer 31 and a p-doped p-Si layer 33. The absorption layer 40 has at least a p-doped p-Ge layer 42 and the layer thickness L of the absorption layer 40 fulfils formula (1). Formula (1): L<(ln 0.8)/? [? indicates the absorption coefficient for germanium (Ge) at the wavelength of the light to be received.Type: ApplicationFiled: July 20, 2017Publication date: August 29, 2019Inventors: Yuichi TAKEUCHI, Takuji HATANO, Yasuhiko ISHIKAWA
-
Publication number: 20190267507Abstract: The present invention addresses the issue of providing: a light-receiving element that has an absorption layer of germanium (Ge), is capable of efficiently receiving near infrared light having a large light-reception sensitivity in the absorption layer, from a free space, and has high productivity and low production cost; and a near infrared light detector comprising said light-receiving element. This light-receiving element 10 has, laminated in order upon a substrate 20, an amplification layer 30 containing silicon (Si), an absorption layer 40 containing germanium (Ge), and an antireflection layer 50. The amplification layer 30 has, in order upon the substrate 20, at least an n-doped n-Si layer 31 and a p-doped p-Si layer 33. The absorption layer 40 has at least a p-doped p-Ge layer 42.Type: ApplicationFiled: July 20, 2017Publication date: August 29, 2019Inventors: Yuichi TAKEUCHI, Takuji HATANO, Yasuhiko ISHIKAWA
-
Patent number: 7094172Abstract: The differential includes a differential housing (7A, 7B). A torque transmission member (5A, 5B) is supported to a differential housing (7A, 7B) for rotating relative to the differential housing. A clutch system (13A, 13B) is configured to interconnect between the torque transmission member (5A, 5B) and the differential housing (7A, 7B) for transmitting a drive torque therebetween.Type: GrantFiled: July 30, 2004Date of Patent: August 22, 2006Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventor: Yasuhiko Ishikawa
-
Patent number: 6946318Abstract: A photodetector device includes a plurality of Ge epilayers that are grown on a substrate and annealed in a defined temperature range. The Ge epilayers form a tensile strained Ge layer that allows the photodetector device to operate efficiently in the C-band and L-band.Type: GrantFiled: September 28, 2004Date of Patent: September 20, 2005Assignee: Massachusetts Institute of TechnologyInventors: Kazumi Wada, Lionel C. Kimerling, Yasuhiko Ishikawa, Douglas D. Cannon, Jifeng Liu
-
Publication number: 20050040411Abstract: A photodetector device includes a plurality of Ge epilayers that are grown on a substrate and annealed in a defined temperature range. The Ge epilayers form a tensile strained Ge layer that allows the photodetector device to operate efficiently in the C-band and L-band.Type: ApplicationFiled: September 28, 2004Publication date: February 24, 2005Inventors: Kazumi Wada, Lionel Kimerling, Yasuhiko Ishikawa, Douglas Cannon, Jifeng Liu
-
Publication number: 20050003923Abstract: The differential includes a differential housing (7A, 7B). A torque transmission member (5A, 5B) is supported to a differential housing (7A, 7B) for rotating relative to the differential housing. A clutch system (13A, 13B) is configured to interconnect between the torque transmission member (5A, 5B) and the differential housing (7A, 7B) for transmitting a drive torque therebetween.Type: ApplicationFiled: July 30, 2004Publication date: January 6, 2005Applicant: Tochigi Fuji Sangyo Kabushiki KaishaInventor: Yasuhiko Ishikawa
-
Patent number: 6832972Abstract: The differential includes a differential housing (7A, 7B) A torque transmission member (5A, 5B) is supported to a differential housing (7A, 7B) for rotating relative to the differential housing. A clutch system (13A, 13B) is configured to interconnect between the torque transmission member (5A, 5B) and the differential housing (7A, 7B) for transmitting a drive torque therebetween.Type: GrantFiled: October 3, 2001Date of Patent: December 21, 2004Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventor: Yasuhiko Ishikawa
-
Patent number: 6812495Abstract: A photodetector device includes a plurality of Ge epilayers that are grown on a substrate and annealed in a defined temperature range. The Ge epilayers form a tensile strained Ge layer that allows the photodetector device to operate efficiently in the C-band and L-band.Type: GrantFiled: December 2, 2002Date of Patent: November 2, 2004Assignee: Massachusetts Institute of TechnologyInventors: Kazumi Wada, Lionel C. Kimerling, Yasuhiko Ishikawa, Douglas D. Cannon, Jifeng Liu
-
Patent number: 6719110Abstract: A wet type friction clutch and an electromagnetic clutch is disclosed wherein a pilot clutch 61 is disposed in a magnetic flux path 95 of an electromagnet 57 and is kept between an armature 71 and the electromagnet 57. Upon excitation of the electromagnet 57, the armature 57 is retracted to allow the pilot clutch 61 to be coupled. The pilot clutch 61 includes a plurality of clutch plates 87, 89 which are interleaved with respect to one another for sliding movements. Adjacent clutch plates 87, 87A, 87B, 89, 89A, 89B, 89C, 89D, 89E, 89F are formed with oil guide passageways 86, 96, 98, 106, 108, 110, 114 to create a hydrodynamic pressure effect to allow the clutch plates to be separated with a limited drag torque.Type: GrantFiled: July 2, 2002Date of Patent: April 13, 2004Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventors: Yasuhiko Ishikawa, Makoto Ishizuka, Yoshiyuki Nakabayashi, Kouji Iizuka, Yasushi Koshigaya, Yoshiaki Kitsunezuka, Kenji Karasawa, Masayuki Sayama
-
Publication number: 20030235931Abstract: A photodetector device includes a plurality of Ge epilayers that are grown on a substrate and annealed in a defined temperature range. The Ge epilayers form a tensile strained Ge layer that allows the photodetector device to operate efficiently in the C-band and L-band.Type: ApplicationFiled: December 2, 2002Publication date: December 25, 2003Inventors: Kazumi Wada, Lionel C. Kimerling, Yasuhiko Ishikawa, Douglas D. Cannon, Jifeng Liu
-
Patent number: 6638194Abstract: A transmission apparatus (3) outputs drive power of a motor, from a speed changing mechanism (5, 7), via a sub-shaft (25), a power distribution apparatus (4) transmits rotation of an input end member (67) linked to the sub-shaft (25), via output shafts (83, 85), to the front-wheel end and the rear-wheel end, and the sub-shaft (25) and the power distribution apparatus (4) are disposed in an axially overlapping relationship.Type: GrantFiled: September 19, 2001Date of Patent: October 28, 2003Assignees: Tochigi Fuji Sangyo Kabushiki Kaisha, Jatco TransTechnology Ltd.Inventors: Yasuhiko Ishikawa, Masayuki Nagai
-
Patent number: 6523633Abstract: A first power train (T1) for driving a pair of front drive wheels (Wf1, Wf2) comprises a transmission (5) connected to an engine (3) and a front drive train (Df1) including a front final reduction gear (9) connected to the transmission and a front differential gear (15) connected between the front final reduction gear and the front drive wheels, and a second power train (T2) for driving a pair of rear drive wheels (Wr1, Wr2) comprises a rear transfer train (Tr1) branched from the front drive train between the front final reduction gear and the front differential gear and a rear drive train (Dr) connected to the rear drive wheels.Type: GrantFiled: December 3, 1997Date of Patent: February 25, 2003Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventors: Masao Teraoka, Yasuhiko Ishikawa, Hiroyuki Tanaka
-
Publication number: 20030015385Abstract: A wet type friction clutch and an electromagnetic clutch is disclosed wherein a pilot clutch 61 is disposed in a magnetic flux path 95 of an electromagnet 57 and is kept between an armature 71 and the electromagnet 57. Upon excitation of the electromagnet 57, the armature 57 is retracted to allow the pilot clutch 61 to be coupled. The pilot clutch 61 includes a plurality of clutch plates 87, 89 which are interleaved with respect to one another for sliding movements. Adjacent clutch plates 87, 87A, 87B, 89, 89A, 89B, 89C, 89D, 89E, 89F are formed with oil guide passageways 86, 96, 98, 106, 108, 110, 114 to create a hydrodynamic pressure effect to allow the clutch plates to be separated with a limited drag torque.Type: ApplicationFiled: July 2, 2002Publication date: January 23, 2003Applicant: TOCHIGI FUJI SANGYO KABUSHIKI KAISHAInventors: Yasuhiko Ishikawa, Makoto Ishizuka, Yoshiyuki Nakabayashi, Kouji Iizuka, Yasushi Koshigaya, Yoshiaki Kitsunezuka, Kenji Karasawa, Masayuki Sayama
-
Patent number: 6436002Abstract: A differential case has therein a bevel gear type differential mechanism, difference limiting main and pilot clutches, and a cam mechanism for increasing engagement force of the pilot clutch to be transmitted via a transmission member for actuation of the main clutch. Vehicular axles inserted in the differential cases are connected to torque-outputting side gears with circlips for removal prevention thereof and a thrust block to fill a space therebetween. The circlips and the thrust block are applied from the outside through apertures formed in the differential case and the transmission member.Type: GrantFiled: July 12, 2000Date of Patent: August 20, 2002Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventors: Yasuhiko Ishikawa, Hideyuki Inose
-
Patent number: 6413183Abstract: An outer rotational member has an inner wall surface and an outer wall surface. An inner rotational member is arranged inside the outer rotational member. Friction-clutch means is provided between the inner rotational member and the outer rotational member and is fastened by a thrust force. An oil lubricates at least the friction-clutch means. An oil space intervenes between the inner rotational member and the outer rotational member. Seal means seals the oil in the oil space. A first oil reservoir is recessed on the inner wall surface of the outer rotational member toward a side of the outer wall surface side.Type: GrantFiled: April 10, 2000Date of Patent: July 2, 2002Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventors: Yasuhiko Ishikawa, Kazutaka Kawata, Hiroshi Nohara, Toshio Shiba, Naoshi Mogami, Katsumi Tanaka, Norihiko Tashiro, Naoyuki Shioda, Tadashi Oikawa, Akihiro Mashiyama, Osamu Ishikawa, Masayuki Sayama, Shigeyuki Shimada, Hideyuki Inose, Yoshiharu Shouda
-
Publication number: 20020049110Abstract: The differential includes a differential housing (7A, 7B) A torque transmission member (5A, 5B) is supported to a differential housing (7A, 7B) for rotating relative to the differential housing. A clutch system (13A, 13B) is configured to interconnect between the torque transmission member (5A, 5B) and the differential housing (7A, 7B) for transmitting a drive torque therebetween.Type: ApplicationFiled: October 3, 2001Publication date: April 25, 2002Applicant: TOCHIGI FUJI SANGYO KABUSHIKI KAISHAInventor: Yasuhiko Ishikawa
-
Publication number: 20020035002Abstract: A transmission apparatus (3) outputs drive power of a motor, from a speed changing mechanism (5, 7), via a sub-shaft (25), a power distribution apparatus (4) transmits rotation of an input end member (67) linked to the sub-shaft (25), via output shafts (83, 85), to the front-wheel end and the rear-wheel end, and the sub-shaft (25) and the power distribution apparatus (4) are disposed in an axially overlapping relationship.Type: ApplicationFiled: September 19, 2001Publication date: March 21, 2002Applicant: TOCHIGI FUJI SANGYO KABUSHIKI KAISHAInventors: Yasuhiko Ishikawa, Masayuki Nagai