公开(公告)号：DE69117267D1

公开(公告)日：1996-03-28

申请号：DE69117267

申请日：1991-11-29

Applicant: EBARA CORP

Inventor： NODA YUMIKO ,  KAMIYA ICHIRO ,  TOSHIMITSU MANABU ,  SATO YOSHIO ,  SHINJO RYOICHI

IPC: B23K26/00 ,  B23K26/40 ,  B28B11/12 ,  F16C17/04 ,  F16C33/04 ,  F16C33/10 ,  F16C33/14 ,  F16C33/24

Abstract: A ceramic hydrodynamic bearing used as a radial or a thrust bearing in a spindle motor for a hard disk driver. The bearing includes a ceramic bearing base having hydrodynamic pressure generating grooves. A sliding surface of the bearing base is irradiated with an energy beam with a high energy density to remove said material, thereby forming hydrodynamic pressure generating groove, and at the same time the grooves are coated with a modification layer that is formed by melting the ceramic material that constitutes said ceramic bearing base with the energy beam and by solidifying said ceramic bearing base.

公开(公告)号：JP2001178276A

公开(公告)日：2001-07-03

申请号：JP37021399

申请日：1999-12-27

Applicant: EBARA CORP

Inventor： KURODA TETSUO ,  OTSUKA HIDEMITSU ,  KAMIYA ICHIRO ,  NARASAKI YUZO

IPC: A01G9/10 ,  A01G9/02

Abstract: PROBLEM TO BE SOLVED: To provide a raising seedling tool attaining uniform root-taking period and growth of plant by preventing the damage to the root of a seedling in the case of taking the seedling out of a raising seedling tray for fixed planting. SOLUTION: This plug for seedling has completely opened upper and lower ends. Preferably, the area of the upper opening of the seedling plug is larger than that of the lower opening and an opening is formed also on the side face of the seedling plug. The raising seedling tray is produced by holding the seedling plug on a tray having a depressed holding part of a size sufficient for holding the seedling plug and having a supporting face on the bottom.

公开(公告)号：JP2001055580A

公开(公告)日：2001-02-27

申请号：JP23144899

申请日：1999-08-18

Applicant: EBARA CORP

Inventor： UMEDA ITARU ,  HAYASHI HIDEAKI ,  KAMIYA ICHIRO

IPC: B09B3/00 ,  C10B53/02

Abstract: PROBLEM TO BE SOLVED: To provide a device and a process for carbonizing biomass, which are carbonization technics for combustible wastes, particularly for biomass, generated in quantities on a small scale but irregularly, prevent or control the discharge of injurious materials such as dioxins on a small scale, and can produce a vegetable coal useful as fuel, a water cleaner and a soil conditioner that can be stored safely. SOLUTION: In the device for carbonizing biomass, a batch carbonization chamber 10, that carbonizes biomass by the heat generated in the chamber, is arranged in the lower part, and a gas combustion chamber 20, that causes to self-burn the gas stream containing volatile components discharged from the carbonization chamber 10, is arranged in the upper part, a temperature- sensing means 22, that detects the gas combustion temperature, being arranged in the gas combustion chamber 20, combustion air supply means comprising blowers 13 and 23 being respectively arranged in the carbonization chamber 10 and the gas combustion chamber 20, and a damper mechanism 31, that can isolate the carbonization chamber 10 from the gas combustion chamber 20, is arranged between the both chambers, the damper mechanism 31 being controlled by the power output of the temperature-sensing means 22.

公开(公告)号：JPH0624710A

公开(公告)日：1994-02-01

申请号：JP19900592

申请日：1992-07-03

Applicant: EBARA CORP

Inventor： NISHIOKA YUKIKO ,  KAMIYA ICHIRO ,  HARADA MINORU ,  SHINJO RYOICHI

IPC: C01B13/11 ,  H01T23/00

Abstract: PURPOSE:To prevent dew condensation in a discharge body, etc., and prevent the discharge body, etc., from causing abnormal discharge in an ozone generator cooling the discharge body, etc., generating ozone by discharging at high voltage. CONSTITUTION:In an ozone generator 1 housing a discharge body 10 for generating ozone by discharge, an electric source 12 applying alternating current high voltage to the discharge body and a cooling part 11, etc., for cooling the discharge body 10 and/or electron source 12 in one housing 2, a dehumidifier 15 for outside air is provided in an outside air suction port 14 for ventilation. A cooling liquid passage of the outside air dehumidifier 15 is provided on upstream side of the cooling part 11 for the discharge body 10, etc., to keep the interior of the device in drying atmosphere. A dehumidifier 6 is provided in the outlet of a compressor 5 for introducing a raw material gas and simultaneously a discharge port 24 of a discharge gas piping 23 of an oxygen enriching device or heatless drier 8 passing the dehumidified raw material gas through is provided in the device.

公开(公告)号：JPH04203618A

公开(公告)日：1992-07-24

申请号：JP33784590

申请日：1990-11-30

Applicant: EBARA CORP

Inventor： NODA YUMIKO ,  KAMIYA ICHIRO ,  SHINJO RYOICHI ,  TOSHIMITSU MANABU ,  SATO YOSHIO

IPC: F16C33/24 ,  B23K26/00 ,  B23K26/352 ,  B28B11/08 ,  F16C17/00 ,  F16C17/02 ,  F16C17/04 ,  F16C33/14

Abstract: PURPOSE:To enhance machining accuracy by applying surface finish to a portion forming a slide surface of a bearing base body made of ceramics after being sintered, bonding an organic material for absorbing a YAG laser beam according to a predetermined pattern of a machining groove so as to radiate the laser beam along the bonded pattern. CONSTITUTION:A portion of a slide surface of a bearing base body 1 made of ceramics after being sintered is applied to surface finish. A black organic material capable of efficiently absorbing a YAG laser beam is bonded onto the slide surface according to a pattern of a predetermined machining groove, thus obtaining portions 2a as shown by slash marks. A YQG laser processor radiates a YAGQ switch pulse laser beam onto the portions 2a with the organic material bonded thereto, to machine the groove 2. The bearing base body 1 is immersed into 1-trichloroethane, followed by ultrasonic cleaning, and then, the residual organic material is removed.

公开(公告)号：JP2002305963A

公开(公告)日：2002-10-22

申请号：JP2001108651

申请日：2001-04-06

Applicant: EBARA CORP

Inventor： KURODA TETSUO ,  UEKI NOBUYUKI ,  OTSUKA HIDEMITSU ,  KAMIYA ICHIRO ,  SEKI KAZUYUKI ,  YONEMORI SHIGEYASU

IPC: A01G1/00 ,  A01G7/00 ,  A01G9/02 ,  A01G27/00

Abstract: PROBLEM TO BE SOLVED: To provide a raising seedling and culturing method enabling the fixed plating without taking the seedling out of a raising seedling tray, and accordingly, preventing the damage on the root of the seedling and resulting in uniform root taking period and growth of the planted seedling, and provide a connected plug to be used in the above method. SOLUTION: The connected plug is composed of a plurality of raising seedling vessels each having an opened top and a bottom opened to a size sufficient for the downward extension of the root of the leaf vegetables. The vessels are connected with each other in an inseparable state in a row and each vessel is filled with coarse-grained soil composed of particles having porous surface. The seed of leaf vegetable is sowed on the connected plug, the surface of the soil is covered with soil and the seedling is grown in the vessel. At a storage to enable the fixed planting of the grown seedling of the leaf vegetable, the connected plug holding the seedling is planted in a culture bed holding a culture medium composed of coarse-grained soil. The medium is pumice particles having a diameter of 1-5.6 mm.

公开(公告)号：JP2001320974A

公开(公告)日：2001-11-20

申请号：JP2000148238

申请日：2000-05-19

Applicant: EBARA CORP

Inventor： SEKI KAZUYUKI ,  KURODA TETSUO ,  KAMIYA ICHIRO

IPC: A01G1/00 ,  A01G9/02 ,  A01G27/06

Abstract: PROBLEM TO BE SOLVED: To provide a plant culture container with a simple structure having a hardly damageable joint part, suitable for mass culture, not requiring an automatic sprinkler, not taking much time or labor for fertilizing and watering, capable of uniformly supplying a fertilizer and water, capable of being simply installed and connected. SOLUTION: This connectable plant culture container is characterized in that the container comprises a box body which opens the top and does not have an opening part on the bottom, one side of the container which is equipped with an outward projected male part at a middle height or higher than it and the other side of the container which is opposed to the side of the male part and is equipped with a notch or an inward projected female part at the same height are opened in a connectable manner and installed. Preferably the projection length of the male part is equal to or longer than the length of the female part, the box body is a U-shaped trough and a pumice-like granular inorganic medium is stored in the box body.

公开(公告)号：JPH1042730A

公开(公告)日：1998-02-17

申请号：JP22059096

申请日：1996-08-01

Applicant: EBARA CORP

Inventor： NARASAKI YUZO ,  KAMIYA ICHIRO ,  OTSUKA HIDEMITSU ,  MORISHITA MANABU ,  NANBU HIROSHI ,  OKAZAKI YUTAKA ,  HIRAYAMA ATSUSHI

IPC: A01G31/00

Abstract: PROBLEM TO BE SOLVED: To provide a water culture apparatus for plant, capable of generating utilities such as water and electric power necessary for the culture of plant by solar energy and minimizing or eliminating the use of external utilities. SOLUTION: This water culture apparatus is at least provided with a roofed culture chamber 100, a water-culture facility 200, a photovoltaic power generation apparatus 400 and a desalination apparatus 300. The photovoltaic power generation apparatus 400 supplies the total or a part of power and the desalination apparatus 300 supplies the total or a part of water necessary for the water culture of plant. The apparatus is further provided with a water-temperature controlling apparatus 500 to control the temperature of the water-culture liquid of the water culture facility 200 to a prescribed level suitable for water culture.

公开(公告)号：JPH06126156A

公开(公告)日：1994-05-10

申请号：JP12086893

申请日：1993-04-22

Applicant: EBARA CORP

Inventor： KAMIYA ICHIRO ,  SHINJO RYOICHI ,  MURAKAMI TAKESHI ,  NISHIOKA YUKIKO ,  HARADA MINORU

IPC: B01J19/08 ,  C01B13/11 ,  H01T19/00

Abstract: PURPOSE:To provide an electric discharge reaction device capable of generating a clean ozone with features such as being harmless to a semi-conductor manufacturing process, high performance, long life and outstanding reliability. CONSTITUTION:A dielectric 2 is allowed to be present between a high voltage electrode 3 and a grounded electrode 4, and silent discharge and/or a creeping discharge is allowed to generate between the dielectric 2 and the high voltage electrode 3 as well as the dielectric 2 and the grounded electrode 4. Further, a substance which passage through a discharge space or is held in the space is allowed to undergo a reactive process in the discharge space. In this electric discharge device, a quartz glass(SiO2 00.99wt.%min) refined to high purity, a monocrystal sapphire of crystallized alumina refined to high purity or high- purity alumina obtained by sintering aluminum oxide refined to high purity, is used as a dielectric material.

公开(公告)号：JPH0550077A

公开(公告)日：1993-03-02

申请号：JP22642291

申请日：1991-08-13

Applicant: EBARA CORP

Inventor： NISHIOKA YUKIKO ,  HARADA MINORU ,  SHINJO RYOICHI ,  KAMIYA ICHIRO

IPC: C01B13/10 ,  B01D35/027 ,  C02F1/78 ,  E04H4/00 ,  E04H4/12

Abstract: PURPOSE:To save water by utilizing a portion of treated water as cooling water of an ozonizer. CONSTITUTION:A hair catcher 2, a forced feeding pump 3, a filter 4, a boiler 7 are provided from the upper stream on a circuit pipe R1 connecting an inlet catchment port 1a of a pool 1 and a circulated water inflow port 1b of the pool 1, and from the vicinity of an ejecting port of the forced feeding pump 3, a branched circuit pipe R2 being interposed with a gas-liquid mixer 5 and a reaction tank 6 on the way is branched, and water is returned to the upper stream of the forced feeding pump 3. The gas-liquid mixer 5 is connected to the ozonizer 8 with an ozone supplying pipe R3. A portion of the pool water is introduced to the ozonizer 8 from the more upper stream part than the gas- liquid mixer 5 of the branched circuit pipe R2 through a cooling water supplying pipe R4 and, after the ozonizer 8 is cooled with it, it is returned to a circle system of the pool water from the vicinity of the outlet of a reaction tank 6 of the branched circuit pipe R2 through a cooling water pipe R5.