Nippon Telegraph and Telephone Corporation

Ntt Advanced Technology Corporation

Nobuhiro Funakoshi

Yukio Takahashi

Yoshikazu Ishii

Ken Sukegawa

Keiji Okada

Fumihiro Ebisawa

Mitsutoshi Hoshino

Akira Morinaka

Takashi Yoshida

Yoshiaki Haga

Tetsuo Iijima

Tadamichi Kawada

Susumu Fujimori

Akira Iwasawa

Hiroshi Nakanishi

Mamoru Ishitani

Shigeko Toeda

Norio Sashida

Masami Miyagi

Miwa Urabe

Masaya Takahashi

Taketoshi Matsuura

Hisao Tabei

Akira Nohara

The present invention provides a method for manufacturing freeze-dried blood cells, stem cells and platelets comprising the steps of: pre-treating a liquid selected from the group consisting of blood including blood cells, bone marrow fluid (hemopoietic stem cells), and platelets in blood plasma, with a solution containing at least one substance selected from the group consisting of saccharide, biopolymer, acid and acid salt; conducting granulation of the aforementioned pre-treated liquid into a granules of a predetermined size; performing rapid cooling of the granules; and drying the resultant frozen material by sublimation of the water content contained therein.

Freeze-dried blood cells, stem cells and platelets, and manufacturing

A UV-A, UV-B discriminating sensor provided with a photochromic compound or photochromic composition as the sensor portion, the photochromic compound or photochromic composition coloring under exposure to UV of wavelength greater than or equal to 280 nm or less than or equal to 400 nm, and wherein at least a portion of the photochromic layer is covered with a layer containing a pigment which absorbs UV of wavelength less than 320 nm, or with a layer containing a pigment which absorbs UV of a wave length greater than or equal to 320 nm but less than or equal to or equal to 400 nm.

UV-A, UV-B discrimination sensor

An image of a text displayed on a flat display is reflected by a half mirror so that a speaker is allowed to see the reflected image in the direction in which he faces the audience. A document of the text to be displayed is prepared as character code data of a frame configuration, and a display controller controls the scroll or page updating of the display screen in accordance with a control instruction from a control panel.

Presentation apparatus

A beam of light emitted from a light source and then modulated is focused through a write head onto a surface of a substrate which is coated with a photosensitive material and is rotated at a predetermined constant rotational speed. The write head and the substrate are displaced relatively in the radial direction of the substrate. While an optical axis of the beam of light is displaced in the direction in which the relative displacement speed between the write head and the substrate is decreased or increased, the substrate is exposed in such a way that a locus of a first turn or wind of predetermined tracks or pit arrays is recorded. Thereafter, while the substrate is rotated at the constant rotational speed, during the next rotation of the substrate the projection of the beam of light is interrupted and the optical axis of the beam of light is returned to its initial position. The above-described steps are repeated for recording the succeeding tracks or pit arrays, whereby a desired track pattern can be obtained.

Method and apparatus for fabricating an optical disc master and an

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Naka, Japan

Nobuhiro Funakoshi