Patents by Inventor Yoshiaki Watanabe
Yoshiaki Watanabe 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: 10578819Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: GrantFiled: June 19, 2018Date of Patent: March 3, 2020Assignee: Sony CorporationInventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
-
Patent number: 10490692Abstract: There is provided a semiconductor light-emitting device including a light-emitting edge, an opposite edge, and a first conductive layer that includes a current narrowing structure having a longitudinal direction along one direction from the opposite edge to the light-emitting edge. An active layer is between the first conductive layer and a second conductive layer which respectively come into contact with the first conductive layer and the second conductive layer. The current narrowing structure includes a spread area such that a width of the spread area in a direction along a surface of the first conductive layer widens from a predetermined position toward the light-emitting edge in the one direction. The first electrode layer includes an electrode area on at least the spread area such that a width thereof in the direction along the surface of the first conductive layer becomes smaller than the width of the spread area.Type: GrantFiled: December 25, 2015Date of Patent: November 26, 2019Assignee: SONY CORPORATIONInventors: Yoshiaki Watanabe, Takayuki Kawasumi
-
Patent number: 10419639Abstract: An image reading apparatus includes a line sensor to read an image of a document in a read area, a storage unit to store first reference data previously acquired by reading a first white reference member opposite to light receiving elements of the line sensor, a second white reference member of which a length is shorter than a length of the line sensor in the main scanning direction, an acquiring unit to acquire reference data read by the line sensor with the second white reference member and the line sensor opposed to each other, a correction unit to correct an output of the light receiving elements not opposite to the second white reference member, based on the stored first reference data and second reference data acquired by the light receiving elements opposite to the second white reference member among the reference data acquired by the acquiring unit.Type: GrantFiled: July 10, 2017Date of Patent: September 17, 2019Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Watanabe, Tsuyoshi Yamauchi, Shigeru Kawasaki
-
Patent number: 10185482Abstract: In the case where entertainment information is acquired as information to be displayed on an instrument panel display 1 when an object indicating driving information is displayed on the instrument panel display 1, an object indicating the entertainment information is moved from the outside of a screen of the instrument panel display 1 to the inside of the screen, and the object indicating the driving information and the object indicating the entertainment information are displayed such that all or part of the object indicating the entertainment information passes behind the object indicating the driving information during the movement.Type: GrantFiled: November 12, 2013Date of Patent: January 22, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshihiko Mori, Takehisa Mizuguchi, Yoshiaki Watanabe, Yasuaki Takimoto, Hiroyuki Yokota
-
Publication number: 20180366612Abstract: [Object] To provide a light-emitting device and a display apparatus that high-output can be achieved without enlarging a light confinement width, i.e., without enlarging a beam spot size. [Solving Means] A light-emitting device includes a first electrode layer, a first conduction type layer, a second conduction type layer, an active layer, and second electrode layer. The first conduction type layer includes a current injection region formed by the first electrode layer and a current non-injection region. A waveguide structure included in the first conduction type layer, the active layer, and the second conduction type layer includes a first region and a second region. The first region has a first waveguide that is the current injection region and the current non-injection region and has a first refractive index difference.Type: ApplicationFiled: September 30, 2016Publication date: December 20, 2018Inventors: KENTARO FUJII, TOMOKI ONO, YOSHIAKI WATANABE
-
Publication number: 20180341076Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: ApplicationFiled: June 19, 2018Publication date: November 29, 2018Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
-
Patent number: 10025051Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: GrantFiled: November 3, 2017Date of Patent: July 17, 2018Assignee: Sony CorporationInventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
-
Patent number: 9983375Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: GrantFiled: May 29, 2015Date of Patent: May 29, 2018Assignee: Sony CorporationInventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
-
Patent number: 9966500Abstract: A semiconductor optical device includes: a ridge stripe structure portion 20 in which a first compound semiconductor layer 31, an active layer 32, and a second compound semiconductor layer 32 are stacked and which has a first end surface 21 which emits light and a second end surface 22 opposite to the first end surface 21; and a current regulation region 41 provided to be adjacent to at least one of ridge stripe adjacent portions 40 positioned at both sides of the ridge stripe structure portion 20, at the second end surface side, and to be away from the ridge stripe structure portion 20. A bottom surface of the current regulation region 41 is under the active layer 33, and a top surface of the ridge stripe adjacent portion 40 excluding the current regulation region 41 is above the active layer 33.Type: GrantFiled: March 20, 2015Date of Patent: May 8, 2018Assignee: SONY CORPORATIONInventors: Yoshiaki Watanabe, Takayuki Kawasumi
-
Publication number: 20180059344Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: ApplicationFiled: November 3, 2017Publication date: March 1, 2018Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka
-
Publication number: 20180033910Abstract: [Solving Means] A first conductive layer of a semiconductor light-emitting device including a light-emitting edge and an opposite edge includes a current narrowing structure configured such that a current injection area is narrowed. A longitudinal direction of the current narrowing structure is provided along one direction from the opposite edge to the light-emitting edge. An active layer is provided between the first conductive layer and a second conductive layer. A first electrode layer and a second electrode layer respectively come into contact with the first conductive layer and the second conductive layer. The current narrowing structure includes a spread area. The spread area is provided such that a width of the current narrowing structure in a direction along a surface of the first conductive layer widens from a predetermined position toward the light-emitting edge in the one direction. The first electrode layer includes an electrode area.Type: ApplicationFiled: December 25, 2015Publication date: February 1, 2018Applicant: SONY CORPORATIONInventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
-
Publication number: 20180020117Abstract: First reference data acquired by reading a first white reference member placed in a read area of a document platen by a line sensor having a plurality of light receiving elements is stored in a storage unit. Second reference data acquired by reading a second white reference member by a capturing unit is compared with the first reference data stored in the storage unit. Output values from the plurality of light receiving elements are subjected to shading correction based on the comparison result.Type: ApplicationFiled: July 10, 2017Publication date: January 18, 2018Inventors: Yoshiaki Watanabe, Tsuyoshi Yamauchi, Shigeru Kawasaki
-
Publication number: 20170364923Abstract: To provide a safety management system capable of appropriately delivering, to a user, a variety of safety information necessary for a product to be safely used and preserved, etc. [Solution] An address acquisition unit of a communication terminal acquires a web address corresponding to a product by optically reading the recognition code of the product. An information processing unit of the communication terminal accesses an information provision server by using the web address and acquires safety information. An information storage unit of the information provision server stores multiple kinds of safety information about each product, the information provision server appropriately selecting, on the basis of a prescribed selection criterion, any safety information from among the plurality of safety information pertaining to the product, and transmitting the selected safety information to the communication terminal.Type: ApplicationFiled: February 24, 2015Publication date: December 21, 2017Inventors: Yoshiaki WATANABE, Kinyo WATANABE
-
Publication number: 20170288090Abstract: [Solving Means] A semiconductor light emitting element includes a first conductive layer, a second conductive layer, and an active layer provided between the first conductive layer and the second conductive layer. The first conductive layer has a current constriction structure, a current injection region being constricted in the current constriction structure. The active layer includes a plurality of quantum well layers, a first light emission wavelength being in a wavelength range of an intensity peak of an entire light emission spectrum, the first light emission wavelength corresponding to a light emission recombination level energy gap of a first quantum well layer of the plurality of quantum well layers, the first quantum well layer being provided at a position closest to the current constriction structure.Type: ApplicationFiled: October 1, 2015Publication date: October 5, 2017Inventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
-
Publication number: 20170047480Abstract: A semiconductor optical device includes: a ridge stripe structure portion 20 in which a first compound semiconductor layer 31, an active layer 32, and a second compound semiconductor layer 32 are stacked and which has a first end surface 21 which emits light and a second end surface 22 opposite to the first end surface 21; and a current regulation region 41 provided to be adjacent to at least one of ridge stripe adjacent portions 40 positioned at both sides of the ridge stripe structure portion 20, at the second end surface side, and to be away from the ridge stripe structure portion 20. A bottom surface of the current regulation region 41 is under the active layer 33, and a top surface of the ridge stripe adjacent portion 40 excluding the current regulation region 41 is above the active layer 33.Type: ApplicationFiled: March 20, 2015Publication date: February 16, 2017Inventors: YOSHIAKI WATANABE, TAKAYUKI KAWASUMI
-
Patent number: 9542821Abstract: A home security system includes an in-home system and a vehicle-mounted system, wherein the in-home system includes an in-home sensor that is mounted in a home and is capable of detect a state of the home, and an in-home communication module that is capable of communicating with the vehicle-mounted system to sense an abnormality from information of the in-home sensor, and wherein the vehicle-mounted system includes a vehicle-mounted device that is mounted on a vehicle that is capable of a vehicle outside output, and a vehicle-mounted communication module that is capable of communicating with the in-home system via the in-home communication module, and when the in-home system senses the abnormality, an instruction is received from the in-home system via the in-home communication module and vehicle-mounted communication module to deal with the abnormality using the vehicle-mounted device according to the instruction.Type: GrantFiled: January 10, 2012Date of Patent: January 10, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshiaki Watanabe, Masahiro Abukawa, Takeshi Mitsui, Takehisa Mizuguchi, Yoshihiro Nakai, Tsutomu Matsubara
-
Patent number: 9499168Abstract: Based on a vehicle driving condition indicated by vehicle control information, an image area to be displayed is determined from a panorama image of a vehicle periphery and a judgment is made about a collision possibility between a vehicle outside object appearing in the image area and the vehicle, so that a display image including the image area is generated and displayed on a display 16, and the vehicle is controlled to avoid its collision with the vehicle outside object according to a result of the judgment about the collision possibility.Type: GrantFiled: January 9, 2013Date of Patent: November 22, 2016Assignee: Mitsubishi Electric CorporationInventors: Yoshiaki Watanabe, Takehisa Mizuguchi, Takeshi Mitsui, Yoshihiro Ogawa, Takafumi Kasuga, Yohei Miki, Takeo Fujita
-
Publication number: 20160266767Abstract: When three warnings (a brake abnormality, a charging abnormality and an oil pressure reduction) occur in a vehicle, a brake abnormality icon, a charging abnormality icon and an oil pressure reduction icon are displayed in an icon displaying region of a display. On the other hand, brake abnormality warning information, charging abnormality warning information and oil pressure reduction warning information are displayed, in an information displaying region, in a switching manner every fixed time period.Type: ApplicationFiled: November 5, 2013Publication date: September 15, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takehisa MIZUGUCHI, Yoshihiko MORI, Yoshiaki WATANABE, Hiroyuki YOKOTA, Takeshi MITSUI, Tsutomu MATSUBARA, Masato HIRAI, Masami AIKAWA, Masahiro KOSAKADA, Masakazu OKUDA
-
Publication number: 20160224222Abstract: In the case where entertainment information is acquired as information to be displayed on an instrument panel display 1 when an object indicating driving information is displayed on the instrument panel display 1, an object indicating the entertainment information is moved from the outside of a screen of the instrument panel display 1 to the inside of the screen, and the object indicating the driving information and the object indicating the entertainment information are displayed such that all or part of the object indicating the entertainment information passes behind the object indicating the driving information during the movement.Type: ApplicationFiled: November 12, 2013Publication date: August 4, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshihiko MORI, Takehisa MIZUGUCHI, Yoshiaki WATANABE, Yasuaki TAKIMOTO, Hiroyuki YOKOTA
-
Publication number: 20150293319Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.Type: ApplicationFiled: May 29, 2015Publication date: October 15, 2015Inventors: Yoshiaki Watanabe, Hironobu Narui, Yuichi Kuromizu, Yoshinori Yamauchi, Yoshiyuki Tanaka