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Takayuki Kawasumi patents

Recent patents with Takayuki Kawasumi listed as an inventor - additional entries may be under other spellings.


Takayuki Kawasumi - Related organizations: Sony Corporation patents

Semiconductor optical device and display device

02/16/17 - 20170047480 - 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
Inventors: Yoshiaki Watanabe, Takayuki Kawasumi

Semiconductor light-emitting element, manufacturing method of semiconductor light-emitting element, and semiconductor device

09/10/15 - 20150255950 - A semiconductor light-emitting element includes a laminated structure which has an active layer between a first conductivity-type semiconductor layer and a second conductivity-type semiconductor layer, a first semiconductor layer which includes at least the first conductivity-type semiconductor layer of the laminated structure, an insulation film which is formed on the
Inventors: Kota Tokuda, Takayuki Kawasumi

Electronic unit, optical disk unit, display unit, and image pickup unit

01/22/15 - 20150024221 - An electronic unit includes: an electronic device; and a protective film including an aluminum oxide layer and silicon oxide, the aluminum oxide layer with which the electronic device is covered, and the silicon oxide being scattered on a surface of the aluminum oxide layer.
Inventors: Yoshiaki Watanabe, Takayuki Kawasumi

Semiconductor light-emission device and manufacturing method

08/21/14 - 20140231838 - A semiconductor light-emission device includes: a p-type conductive layer that is one or more layers each made of a III-V compound semiconductor; an active layer made of a III-V compound semiconductor; and an electron barrier layer inserted between the p-type conductive layer and the active layer, and made of a
Inventors: Kota Tokuda, Makoto Oota, Takayuki Kawasumi

Semiconductor light emitting device, method of manufacturing the same, image display device, and electronic apparatus

10/31/13 - 20130285080 - A semiconductor light emitting device including an active layer, a compound semiconductor layer on the active layer, a contact layer on the compound semiconductor layer, and an electrode on the contact layer, where the contact layer is substantially the same size as the electrode.
Inventors: Hiroki Naito, Takahiro Koyama, Kensuke Kojima, Arata Kobayashi, Hiroyuki Okuyama, Makoto Oogane, Takayuki Kawasumi

Semiconductor light emitting device, method of manufacturing the same, image display device, and electronic apparatus

03/17/11 - 20110062457 - A semiconductor light emitting device including an active layer, a compound semiconductor layer on the active layer, a contact layer on the compound semiconductor layer, and an electrode on the contact layer, where the contact layer is substantially the same size as the electrode.
Inventors: Hiroki Naito, Takahiro Koyama, Kensuke Kojima, Arata Kobayashi, Hiroyuki Okuyama, Makoto Oogane, Takayuki Kawasumi

Light-emitting-element mounting package, light emitting device, backlight, and liquid crystal display device

09/16/10 - 20100231824 - A small and thin, light-emitting-element mounting package is provided, in which light emitting elements may by independently controlled despite a side view type package, and a light emitting device using the package is provided. The light-emitting-element mounting package includes a lead frame. The lead frame has at least one set
Inventors: Hidehiko Nakata, Takayuki Kawasumi, Akihiko Memezawa

Vertical cavity surface emitting laser

02/18/10 - 20100040104 - The present invention provides a Vertical Cavity Surface Emitting Laser including: a first multilayer film reflector; an active layer having a light emission region; a second multilayer film reflector; and a reflectance adjustment layer in this order on a substrate side. The first multilayer film reflector and the second multilayer
Inventors: Osamu Maeda, Yuji Masui, Masaki Shiozaki, Takahiro Arakida, Takayuki Kawasumi


### Takayuki Kawasumi patent invention listings

The bibliographic references displayed about Takayuki Kawasumi's patents are for a recent sample of Takayuki Kawasumi's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Takayuki Kawasumi filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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