Patents by Inventor Futoshi Tsukada
Futoshi Tsukada 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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Patent number: 11929342Abstract: A semiconductor device includes: a lead frame that is formed of metal; a wiring substrate that is opposed to the lead frame; an electronic component that is disposed between the lead frame and the wiring substrate; a connection member that connects lead frame and the wiring substrate; and encapsulating resin that is filled between the lead frame and the wiring substrate and covers the electronic component and the connection member. The lead frame includes: a first surface opposed to the wiring substrate and covered by the encapsulating resin; a second surface located on a back side of the first surface and exposed from the encapsulating resin; and a side surface neighboring first surface or the second surface, at least a portion of the side surface exposed from the encapsulating resin.Type: GrantFiled: October 28, 2020Date of Patent: March 12, 2024Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.Inventors: Futoshi Tsukada, Yukinori Hatori, Yoshiyuki Sawamura
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Publication number: 20210134754Abstract: A semiconductor device includes: a lead frame that is formed of metal; a wiring substrate that is opposed to the lead frame; an electronic component that is disposed between the lead frame and the wiring substrate; a connection member that connects lead frame and the wiring substrate; and encapsulating resin that is filled between the lead frame and the wiring substrate and covers the electronic component and the connection member. The lead frame includes: a first surface opposed to the wiring substrate and covered by the encapsulating resin; a second surface located on a back side of the first surface and exposed from the encapsulating resin; and a side surface neighboring first surface or the second surface, at least a portion of the side surface exposed from the encapsulating resin.Type: ApplicationFiled: October 28, 2020Publication date: May 6, 2021Inventors: Futoshi Tsukada, Yukinori Hatori, Yoshiyuki Sawamura
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Patent number: 9490233Abstract: A fingerprint recognition semiconductor device includes an insulation layer, a wiring pattern formed on a lower surface of the insulation layer, and a sensor element flip-chip-connected to the wiring pattern. The sensor element includes an active surface, including a sensor portion that recognizes a fingerprint, and a rear surface, located at a side opposite to the active surface. An encapsulation resin fills a gap between the lower surface of the insulation layer and an upper surface of a wiring substrate, facing the rear surface of the sensor element and connected to the wiring pattern by a connecting member. The entire active surface of the sensor element is covered by underfill formed between the active surface of the sensor element and the lower surface of the insulation layer. The insulation layer includes an upper surface, defining an uppermost surface and free from a wiring layer.Type: GrantFiled: September 29, 2015Date of Patent: November 8, 2016Assignee: Shinko Electric Industries Co., LTD.Inventors: Yukinori Hatori, Takashi Ozawa, Kazuya Kojima, Futoshi Tsukada
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Publication number: 20160099232Abstract: A fingerprint recognition semiconductor device includes an insulation layer, a wiring pattern formed on a lower surface of the insulation layer, and a sensor element flip-chip-connected to the wiring pattern. The sensor element includes an active surface, including a sensor portion that recognizes a fingerprint, and a rear surface, located at a side opposite to the active surface. An encapsulation resin fills a gap between the lower surface of the insulation layer and an upper surface of a wiring substrate, facing the rear surface of the sensor element and connected to the wiring pattern by a connecting member. The entire active surface of the sensor element is covered by underfill formed between the active surface of the sensor element and the lower surface of the insulation layer. The insulation layer includes an upper surface, defining an uppermost surface and free from a wiring layer.Type: ApplicationFiled: September 29, 2015Publication date: April 7, 2016Applicant: Shinko Electric Industries Co., Ltd.Inventors: Yukinori Hatori, Takashi Ozawa, Kazuya Kojima, Futoshi Tsukada
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Patent number: 6765851Abstract: An optical disc having a power calibration area for calibrating the power of a data recording laser beam. The power calibration area is provided at an inner peripheral part of the disc and has test areas and count areas. The test areas are provided to accomplish trial writing of data, and the count areas are provided to record data representing the use condition of the test areas. Data is recorded on the optical disc, while calibrating the data recording laser beam. The number of the test areas is increased in accordance with an increase in the recording density of the optical disc. The optical disc may be a double-density CD. In this case, the disc has 800 to 1200 test areas. The test areas have the smallest possible size, and the count areas are provided in the smallest possible number. Therefore, the disc can have sufficiently large data regions. Thus, the power of the data recording laser beam can be therefore adjusted many times.Type: GrantFiled: March 26, 2001Date of Patent: July 20, 2004Assignee: Sony CorporationInventors: Tetsuji Kawashima, Futoshi Tsukada, Kunihiko Miyake, Shinji Ohta, Masazumi Shiozawa
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Publication number: 20040104458Abstract: A semiconductor element, such as a pressure sensor, having an upper surface, so that a part of the upper surface is exposed to the outside, while this element is in use. The element is sealed with a sealing resin. The sealing resin has a second, upper surface and a recess, so that said part of the first, upper surface of the semiconductor element is exposed outside at the bottom of said recess which is opened at the second, upper second surface. A releasable protective member has a shape corresponding to the recess and is placed in the recess, so that, when said protective member is in the recess, a bottom surface thereof is in contact with the part of the first, upper face of the protective member and the upper face of the resin coincides with the second surface of the sealing resin.Type: ApplicationFiled: October 1, 2003Publication date: June 3, 2004Inventors: Futoshi Tsukada, Keiichi Masaki
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Patent number: 6693855Abstract: Physical addresses of the recording areas provided on an optical disc are represented in a time-axis data format and in a binary data format. The physical address value gradually increases from the inner part of the disc to the outer part of the disc, while the formats remain in one-to-one correspondence over the recording areas. The distance the optical head must move to reach a target recording area can therefore be calculated easily independently of where on the disc the optical head is located, enabling the optical head to quickly access the target recording area.Type: GrantFiled: May 10, 2001Date of Patent: February 17, 2004Assignee: Sony CorporationInventors: Tetsuji Kawashima, Yukio Shishido, Futoshi Tsukada, Kunihiko Miyake
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Patent number: 6636461Abstract: A method and apparatus for information signals in which, in recording and/or reproducing information signals responsive to a request from a host device, a first address defined with the time domain information is converted into a second address defined with consecutive hexadecimal numbers and vice versa by way of reciprocal address conversion. Specifically, an uppermost order value in the time domain information in the first address and a second address value are converted reciprocally using a conversion table.Type: GrantFiled: June 25, 2001Date of Patent: October 21, 2003Assignee: Sony CorporationInventors: Futoshi Tsukada, Tetsuji Kawashima, Michihiko Iida
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Patent number: 6600707Abstract: An optical disc having a data area in which information signals are recorded, a lead-in area and a lead-out area provided before and after the data area, and a program memory area for temporarily storing address information necessary for additionally writing information signals. A subcode Q of the lead-in area or a subcode Q of the program memory area is provided with identification information for identifying these subcodes Q. For example, the identification information is provided at least in one of address (ADR), track number (TNO), and zero (ZERO) constituting the subcode Q of the program memory area or the lead-in area. Thus, it is possible to discriminate the subcode Q of the program memory area and the subcode Q of the lead-in area securely and instantaneously.Type: GrantFiled: March 23, 2001Date of Patent: July 29, 2003Assignee: Sony CorporationInventor: Futoshi Tsukada
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Publication number: 20020041541Abstract: A method and apparatus for information signals in which, in recording and/or reproducing information signals responsive to a request from a host device, a first address defined with the time domain information is converted into a second address defined with consecutive hexadecimal numbers and vice versa by way of reciprocal address conversion. Specifically, an uppermost order value in the time domain information in the first address and a second address value are converted reciprocally using a conversion table.Type: ApplicationFiled: June 25, 2001Publication date: April 11, 2002Inventors: Futoshi Tsukada, Tetsuji Kawashima, Michihiko Iida
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Publication number: 20020006084Abstract: Physical addresses of the recording areas provided on an optical disc are represented in the first format that is time-axis data and the second format that is binary data. The physical address value gradually increases from the inner most part toward the outermost part of this disc, while the first format and the second format remains in one-to-one correspondence over the entire recording areas. The distance the optical head must move to reach the target recording area can therefore be calculated easily, no matter where on the disc the optical is located at present. This enables the optical head to make a fast access to the target recording area.Type: ApplicationFiled: May 10, 2001Publication date: January 17, 2002Inventors: Tetsuji Kawashima, Yukio Shishido, Futoshi Tsukada, Kunihiko Miyake
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Publication number: 20010040846Abstract: An optical disc having a power calibration area for calibrating the power of a data recording laser beam. The power calibration area is provided at an inner peripheral part of the disc and has test areas and count areas. The test areas are provided to accomplish trial writing of data, and the count areas are provided to record data representing the use condition of the test areas. Data is recorded on the optical disc, while calibrating the data recording laser beam. The number of the test areas is increased in accordance with an increase in the recording density of the optical disc. The optical disc may be a double-density CD. In this case, the disc has 800 to 1200 test areas. The test areas have the smallest possible size, and the count areas are provided in the smallest possible number. Therefore, the disc can have sufficiently large data regions. Thus, the power of the data recording laser beam can be therefore adjusted many times.Type: ApplicationFiled: March 26, 2001Publication date: November 15, 2001Inventors: Tetsuji Kawashima, Futoshi Tsukada, Kunihiko Miyake, Shinji Ohta, Masazumi Shiozawa
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Publication number: 20010030919Abstract: An optical disc having a data area in which information signals are recorded, a lead-in area and a lead-out area provided before and after the data area, and a program memory area for temporarily storing address information necessary for additionally writing information signals. A subcode Q of the lead-in area or a subcode Q of the program memory area is provided with identification information for identifying these subcodes Q. For example, the identification information is provided at least in one of address (ADR), track number (TNO), and zero (ZERO) constituting the subcode Q of the program memory area or the lead-in area. Thus, it is possible to discriminate the subcode Q of the program memory area and the subcode Q of the lead-in area securely and instantaneously.Type: ApplicationFiled: March 23, 2001Publication date: October 18, 2001Applicant: Sony CorporationInventor: Futoshi Tsukada
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Patent number: 6229772Abstract: A laser light beam is illuminated via an objective lens on the signal surface of an optical disc and the objective lens is displaced by a servo processor along the optical axis for focussing search to generate focussing error signals by a RF block from a detected output of the laser light by the signal surface of the optical disc. Based on these focussing error signals, a system controller discriminates the types of the optical disc having different numbers of signal recording layers for setting an operating mode in keeping with the types of the optical disc.Type: GrantFiled: August 28, 1998Date of Patent: May 8, 2001Assignee: Sony CorporationInventors: Eiji Kumagai, Kenji Nagashima, Futoshi Tsukada
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Patent number: 5586098Abstract: An optical disc apparatus using zone record system that successively records data in a plurality of zones without a time lag in switching zones is disclosed. A phase error signal is formed with a reproduced signal of a servo zone of an optical disc 1. A servo clock is generated by a servo PLL 8. Data PLLs 9a and 9b divide the frequency of the servo clock. The laser power of the servo zone is detected by a circuit 11a so as to perform a read ALPC operation. The record laser power is detected by a circuit 11b so as to perform a write ALPC operation. A DSP 14 compares the monitor values and a reference value and controls a bias value of the drive signal so that the detected value becomes equal to the reference value. In write mode, a laser device emits pulse laser light in response to the data clock. Since the write ALPC operation is performed for the next zone while it is performed for the present zone, one of the PLLs 9a and 9b generates data clock for the present zone.Type: GrantFiled: March 22, 1995Date of Patent: December 17, 1996Assignee: Sony CorporationInventors: Norio Nishida, Futoshi Tsukada