Patents by Inventor Masaharu Muramatsu
Masaharu Muramatsu 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: 9749561Abstract: A solid-state imaging device includes a light receiving section formed by such exposure as to stitch a plurality of patterns in a first direction on a semiconductor substrate. The light receiving section includes a plurality of pixels disposed in a two-dimensional array in the first direction and a second direction perpendicular to the first direction. Electric charges are transferred in the second direction in each of pixel columns consisting of a plurality of pixels disposed in the second direction, among the plurality of pixels.Type: GrantFiled: February 12, 2014Date of Patent: August 29, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hisanori Suzuki, Masaharu Muramatsu
-
Publication number: 20170229501Abstract: A solid-state imaging device includes a plurality of photoelectric converting units and a plurality of charge-accumulating units each accumulating a charge generated in the corresponding photoelectric converting unit. The photoelectric converting unit includes a photosensitive region that generates the charge in accordance with light incidence, and an electric potential gradient forming unit that accelerates migration of charge in a second direction in the photosensitive region. The charge-accumulating unit includes: a plurality of regions (semiconductor layers) having an impurity concentration gradually changed in one way in the second direction, and electrodes adapted to apply electric fields to the plurality of regions. Each of the electrodes is disposed over the plurality of regions having the impurity concentration gradually varied.Type: ApplicationFiled: August 3, 2015Publication date: August 10, 2017Applicant: Hamamatsu Photonics K.K.Inventors: Shin-ichiro TAKAGI, Kentaro MAETA, Yasuhito YONETA, Hisanori SUZUKI, Masaharu MURAMATSU
-
Patent number: 9635293Abstract: A solid-state imaging device includes photoelectric converting sections transfer sections first buffer sections second buffer sections first output sections, and second output sections. The photoelectric converting sections generate electric charges in response to incidence of light. The transfer sections transfer the generated electric charges in a first direction or in a second direction opposite thereto in response to three-phase or four-phase drive signals. The first buffer sections and the second buffer sections acquire the electric charges transferred in the first and second directions, respectively, by the transfer sections and transfer the acquired electric charges in the first and second directions, respectively, in response to two-phase drive signals. The first output sections and the second output sections acquire the electric charges transferred from the first buffer sections and from the second buffer sections respectively, and output signals according to the acquired electric charges.Type: GrantFiled: February 18, 2014Date of Patent: April 25, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shinya Otsuka, Hisanori Suzuki, Masaharu Muramatsu
-
Patent number: 9609247Abstract: A solid-state imaging device 1 according to one embodiment of the present invention is a charge multiplying solid-state imaging device, and includes an imaging area 10 that generates a charge according to the amount of incident light, an output register unit 20 that receives the charge from the imaging area 10, and a multiplication register unit 28 that multiplies the charge from the output register 20, and performs feed-forward control of the multiplication factor of the multiplication register unit 28 according to the charge amount from the imaging area 10.Type: GrantFiled: January 22, 2010Date of Patent: March 28, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hisanori Suzuki, Yasuhito Yoneta, Shin-ichiro Takagi, Kentaro Maeta, Masaharu Muramatsu
-
Patent number: 9583526Abstract: A solid-state image pickup element is provided with a semiconductor substrate having a photosensitive region, a plurality of first electrode pads arrayed on a principal face of the semiconductor substrate, a plurality of second electrode pads arrayed in a direction along a direction in which the plurality of first electrode pads are arrayed, on the principal face of the semiconductor substrate, and a plurality of interconnections connecting the plurality of first electrode pads and the plurality of second electrode pads in one-to-one correspondence. The plurality of interconnections connect the first and second electrode pads so that each interconnection connects the first electrode pad and the second electrode pad in a positional relation of line symmetry with respect to a center line perpendicular to the array directions of the plurality of first and second electrode pads.Type: GrantFiled: June 19, 2012Date of Patent: February 28, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomohiro Ikeya, Toshiyuki Fukui, Hisanori Suzuki, Masaharu Muramatsu
-
Patent number: 9559132Abstract: A semiconductor substrate is provided with a plurality of photosensitive regions on a first principal surface side. An insulating film has a third principal surface and a fourth principal surface opposed to each other, and is arranged on the semiconductor substrate so that the third principal surface is opposed to the first principal surface. A cross section parallel to a thickness direction of the semiconductor substrate, of a region corresponding to each photosensitive region in the first principal surface is a corrugated shape in which concave curves and convex curves are alternately continuous. A cross section parallel to a thickness direction of the insulating film, of a region corresponding to each photosensitive region in the third principal surface is a corrugated shape in which concave curves and convex curves are alternately continuous corresponding to the first principal surface. The fourth principal surface is flat.Type: GrantFiled: March 1, 2013Date of Patent: January 31, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Kenichi Sugimoto, Hisanori Suzuki, Masaharu Muramatsu
-
Patent number: 9502456Abstract: An electronic component device includes a first electronic component on which a first electrode pad is disposed, a second electronic component on which a second electrode pad having a first pad portion and a second pad portion is disposed, a first bonding wire having one end connected to the first electrode pad and the other end connected to the first pad portion, and a second bonding wire having one end connected to a connection portion between the first pad portion and the first bonding wire and the other end connected to the second pad portion. The second electrode pad is disposed on the second electronic component so that the first pad portion and the second pad portion are laid along a direction intersecting with an extending direction of the first bonding wire. The extending direction of the first bonding wire intersects with an extending direction of the second bonding wire.Type: GrantFiled: September 24, 2013Date of Patent: November 22, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Shingo Ishihara, Masaharu Muramatsu
-
Patent number: 9491384Abstract: In a solid-state imaging device 1, an overflow gate (OFG) 5 has a predetermined electric resistance value, while voltage application units 161 to 165 are electrically connected to the OFG 5 at connecting parts 171 to 175. Therefore, when voltage values V1 to V5 applied to the connecting parts 171 to 175 by the voltage application units 161 to 165 are adjusted, the OFG 5 can yield higher and lower voltage values in its earlier and later stage parts, respectively. As a result, the barrier level (potential) becomes lower and higher in the earlier and later stage parts, so that all the electric charges generated in an earlier stage side region of photoelectric conversion units 2 can be caused to flow out to an overflow drain (OFD) 4, whereby only the electric charges generated in a later stage side region of the photoelectric conversion units 2 can be TDI-transferred.Type: GrantFiled: March 25, 2010Date of Patent: November 8, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hisanori Suzuki, Yasuhito Yoneta, Kentaro Maeta, Masaharu Muramatsu
-
Publication number: 20160286147Abstract: Each pixel region PX includes a photoelectric conversion region S1, a resistive gate electrode R, a first transfer electrode T1, a second transfer electrode T2, a barrier region B positioned directly beneath the first transfer electrode T1 in a semiconductor substrate 10, and a charge accumulation region S2 positioned directly beneath the second transfer electrode T2 in the semiconductor substrate 10. An impurity concentration of the barrier region B is lower than an impurity concentration of the charge accumulation region S2, and the first transfer electrode T1 and the second transfer electrode T2 are electrically connected to each other.Type: ApplicationFiled: October 31, 2014Publication date: September 29, 2016Inventors: Shin-ichiro TAKAGI, Yasuhito YONETA, Hisanori SUZUKI, Masaharu MURAMATSU
-
Publication number: 20160268334Abstract: An optical detection unit AR is divided so as to have a plurality of pixel regions PX aligned in a column direction. Signals from the plurality of pixel regions PX are integrated for each optical detection unit AR, and output the signal as an electrical signal corresponding to a one-dimensional optical image in time series. Each of the pixel regions PX includes a resistive gate electrode R which promotes transfer of charges in the photoelectric conversion region and a charge accumulation region S2. A drain region ARD is adjacent to the charge accumulation region S2 through a channel region.Type: ApplicationFiled: October 31, 2014Publication date: September 15, 2016Inventors: Shin-ichiro TAKAGI, Yasuhito YONETA, Hisanori SUZUKI, Masaharu MURAMATSU
-
Patent number: 9419051Abstract: A solid-state imaging device is provided with a plurality of photoelectric converting portions each having a photosensitive region and an electric potential gradient forming region, and which are juxtaposed so as to be along a direction intersecting with a predetermined direction, a plurality of buffer gate portions each arranged corresponding to a photoelectric converting portion and on the side of the other short side forming a planar shape of the photosensitive region, and accumulates a charge generated in the photosensitive region of the corresponding photoelectric converting portion, and a shift register which acquires charges respectively transferred from the plurality of buffer gate portions, and transfers the charges in the direction intersecting with the predetermined direction, to output the charges. The buffer gate portion has at least two gate electrodes to which predetermined electric potentials are respectively applied so as to increase potential toward the predetermined direction.Type: GrantFiled: October 31, 2011Date of Patent: August 16, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
-
Patent number: 9401381Abstract: A portion on the light exit end surface side of a fiber optic plate includes a first portion and a second portion. The first portion corresponds to a peripheral portion of a semiconductor photodetecting element. The second portion corresponds to a thin portion of the semiconductor photodetecting element and projects more toward the semiconductor photodetecting element than the first portion. A height of a step made between the first portion and the second portion of the fiber optic plate is lower than a height of a step made between the thin portion and the peripheral portion of the semiconductor photodetecting element. The semiconductor photodetecting element and the fiber optic plate are fixed by a resin, in a state in which the first portion and the peripheral portion are in contact and in which the second portion and the thin portion are separated.Type: GrantFiled: March 13, 2013Date of Patent: July 26, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hiroya Kobayashi, Masaharu Muramatsu
-
Patent number: 9305969Abstract: A solid-state imaging device 1A includes a CCD-type solid-state imaging element 10 having an imaging plane 12 formed of M×N pixels that are two-dimensionally arrayed in M rows and N columns, N signal readout circuits 20 arranged on one end side in the column direction for each of the columns with respect to the imaging plane 12, and N signal readout circuits 30 arranged on the other end side in the column direction for each of the columns with respect to the imaging plane 12, a semiconductor element 50 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 20 for each of the columns, and a semiconductor element 60 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 30 for each of the columns.Type: GrantFiled: November 1, 2012Date of Patent: April 5, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Motohiro Suyama, Akiomi Ujima, Kentaro Maeta, Hisanori Suzuki, Masaharu Muramatsu, Fumio Iwase
-
Patent number: 9299860Abstract: A solid state imaging device 1 is provided with a photoelectric conversion portion 2 having photosensitive regions 13, and a potential gradient forming portion 3 arranged opposite to the photosensitive regions 13. A planar shape of each photosensitive region 13 is a substantially rectangular shape composed of two long sides and two short sides. The photosensitive regions 13 are juxtaposed in a first direction intersecting with the long sides. The potential gradient forming portion 3 has a first potential gradient forming region to form a potential gradient becoming lower along a second direction from one of the short sides to the other of the short sides, and a second potential gradient forming region to form a potential gradient becoming higher along the second direction. The second potential gradient forming region is arranged next to the first potential gradient forming region in the second direction.Type: GrantFiled: November 11, 2011Date of Patent: March 29, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomohiro Ikeya, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
-
Publication number: 20160044260Abstract: A solid-state imaging device includes photoelectric converting sections transfer sections first buffer sections second buffer sections first output sections, and second output sections. The photoelectric converting sections generate electric charges in response to incidence of light. The transfer sections transfer the generated electric charges in a first direction or in a second direction opposite thereto in response to three-phase or four-phase drive signals. The first buffer sections and the second buffer sections acquire the electric charges transferred in the first and second directions, respectively, by the transfer sections and transfer the acquired electric charges in the first and second directions, respectively, in response to two-phase drive signals. The first output sections and the second output sections acquire the electric charges transferred from the first buffer sections and from the second buffer sections respectively, and output signals according to the acquired electric charges.Type: ApplicationFiled: February 18, 2014Publication date: February 11, 2016Inventors: Shinya OTSUKA, Hisanori SUZUKI, Masaharu MURAMATSU
-
Publication number: 20150380455Abstract: A plurality of semiconductor photodetecting elements have a planar shape having a pair of first sides opposed to each other in a first direction and a pair of second sides being shorter than the pair of first sides and opposed to each other in a second direction perpendicular to the first direction, and are disposed on a base so as to be adjacent to each other in juxtaposition. A plurality of bump electrodes each are disposed on sides where the pair of first sides lie in each semiconductor photodetecting element, to electrically and mechanically connect the base to each semiconductor photodetecting element. A plurality of dummy bumps are disposed so that at least one dummy bump is disposed on each of sides where the pair of second sides lie in each semiconductor photodetecting element, to mechanically connect the base to each semiconductor photodetecting element.Type: ApplicationFiled: October 17, 2013Publication date: December 31, 2015Inventors: Kenichi SUGIMOTO, Hiroya KOBAYASHI, Kentaro MAETA, Masaharu MURAMATSU
-
Publication number: 20150380580Abstract: A back-illuminated energy ray detecting element 1 includes a semiconductor substrate and a protective film. The semiconductor substrate has a first principal surface as an energy ray incident surface and a second principal surface opposite to the first principal surface, and a charge generating region configured to generate an electric charge according to incidence of an energy ray is disposed on the second principal surface side. The protective film is disposed on the second principal surface side of the semiconductor substrate to cover at least the charge generating region, and includes silicon nitride or silicon nitride oxide. The protective film has a stress alleviating section configured to alleviate stress generated in the protective film.Type: ApplicationFiled: January 24, 2014Publication date: December 31, 2015Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yasuhito MIYAZAKI, Kentaro MAETA, Masaharu MURAMATSU
-
Publication number: 20150365613Abstract: A solid-state imaging device includes a light receiving section formed by such exposure as to stitch a plurality of patterns in a first direction on a semiconductor substrate. The light receiving section includes a plurality of pixels disposed in a two-dimensional array in the first direction and a second direction perpendicular to the first direction. Electric charges are transferred in the second direction in each of pixel columns consisting of a plurality of pixels disposed in the second direction, among the plurality of pixels.Type: ApplicationFiled: February 12, 2014Publication date: December 17, 2015Inventors: Hisanori SUZUKI, Masaharu MURAMATSU
-
Publication number: 20150340398Abstract: An electronic component device includes a first electronic component on which a first electrode pad is disposed, a second electronic component on which a second electrode pad having a first pad portion and a second pad portion is disposed, a first bonding wire having one end connected to the first electrode pad and the other end connected to the first pad portion, and a second bonding wire having one end connected to a connection portion between the first pad portion and the first bonding wire and the other end connected to the second pad portion. The second electrode pad is disposed on the second electronic component so that the first pad portion and the second pad portion are laid along a direction intersecting with an extending direction of the first bonding wire. The extending direction of the first bonding wire intersects with an extending direction of the second bonding wire.Type: ApplicationFiled: September 24, 2013Publication date: November 26, 2015Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro TAKAGI, Shingo ISHIHARA, Masaharu MURAMATSU
-
Publication number: 20150200216Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.Type: ApplicationFiled: January 7, 2015Publication date: July 16, 2015Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chem, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer