Ricoh Company, Ltd.

Minoru Fukuda

Masahiro Matsuo

Hirohisa Abe

Kunio Matsudaira

Keiichi Suzuki

Takanori Yano

Akira Takahashi

Hiroaki Nakanishi

Yukio Kadowaki

Tooru Suino

Shogo Oneda

Yutaka Sano

Seiji Sarayama

Hirokazu Iwata

Tetsuya Takahashi

Yojiro Kamei

Akihisa Nakano

A method for manufacturing a group III nitride crystal on a seed crystal in a holding vessel holding therein a melt containing a group III metal, an alkali metal and nitrogen. The manufacturing method comprises the steps of causing the seed crystal to make a contact with the melt, setting an environment of the seed crystal to a first state offset from a crystal growth condition while in a state in which said seed crystal is in contact with the melt, increasing a nitrogen concentration in the melt, and setting the environment of the seed crystal to a second state suitable for crystal growth when the nitrogen concentration of the melt has reached a concentration suitable for growing the seed crystal.

Manufacturing method and manufacturing apparatus of a group III nitride crystal, utilizing a melt containing a group III metal, an alkali metal, and nitrogen

Manufacturing method and manufacturing apparatus of a group III nitride crystal

The present invention is related to a composite flash memory device comprises a plural sector flash memory array which is divided to plural sector that is a minimum erasing unit of the flash memory device, a flash memory array storing control commands which control a total system of the composite flash memory device and/or the only composite flash memory device in and sharing I/O line of the plural sector flash memory array, the read operation of the flash memory array is enable when the plural sector flash memory array is gained access.

Memory configuration of a composite memory device

A document feeding and reading unit and an image forming apparatus capable of reducing errors in magnification copying when the change in the diameter of drive motors results from heating. The document feeding and reading unit reads a document image while transporting a document sheet. At least one transport mechanism, including at least one drive roller and driven roller brought into slidable contact with a drive roller, transports the document sheet while holding the document between the drive roller and the driven roller. A detector measures the temperature at a location of the document feeding and reading unit. A controller controls the rotation speed of the drive roller based on temperature information acquired by the temperature detector. The document feeding and reading unit can be suitably incorporated into an image forming apparatus.

Document feeding and reading unit and image forming apparatus

An image decoder comprises a code decompression/decoding unit that decodes code data produced through compression and encoding of image data, a power supply state detection unit that detects a current state of a power supply of the image decoder, and a controller that controls the code decompression/decoding unit based on the current state of the power supply so as to reduce power consumption in performing decompression and decoding of the code data.

Image coder and image decoder capable of power-saving control in image compression and decompression

In an image processing apparatus, first code data including multiple sets of code data in which image data of multiple static images are compressed and encoded, are synthesized. The first code data are converted into second code data that are compressed and encoded to be a single code data sequence where a motion image aligns the static images in chronological order as consecutive frames. In addition, the second code data may be converted into the first code data.

Image processing apparatus and method for converting first code data sets into second code data for JPEG 2000 and motion JPEG 2000

In an image processing apparatus, using distortion amount information showing how much a decoded image is degraded from an original image when data are eliminated from the data sequence is read from a code sequence in which the original image is compressed and encoded, an occurrence of an error in each unit of the code sequence is detected. A distortion amount of the decoded image against the original image is calculated when the code sequence is decoded after the data are eliminated from the code sequence by using the distortion amount information concerning the data in which the error is detected. Then, the decoding of the code sequence is cancelled based on a calculation result.

Image processing apparatus for using distortion amount information

An image sending apparatus is provided, in which the image sending apparatus comprises an analyzing syntax of code sequence data, a generation unit generating another code sequence data from the code sequence data by using the analysis result, a unit to measure the load of the generation unit; a unit to generate a parameter corresponding to the load, wherein the generation unit generates the another code sequence data by using the parameter such that the data amount of the another code sequence data to be sent is adjusted according to the load.

Image sending apparatus and image receiving apparatus for sending and receiving code sequence data

A sheet conveying device of the present invention includes a roll-up guide rotatable about a shaft. When the roll-up guide is shifted to a roll-up position where it intersects a first tray, it rolls up a sheet discharged and stores the sheet in the form of a roll. The roll-up guide allows, when shifted to a pick-up position above the body of the device, the operator of the device to pick up the rolled sheet from the roll-up guide at the operating position in front of the device. The device is easy to operate and is capable of storing a sheet in the form of a roll and allowing the roll to be safely picked up without any damage.

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Kanagawa, Japan

Minoru Fukuda