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1. 发明专利

JPH0545547B2 失效
公开(公告)号：JPH0545547B2
公开(公告)日：1993-07-09
申请号：JP6050385
申请日：1985-03-25
申请人： NORITAKE CO LTD
发明人： HIRANO MASANORI , INADA HIROSHI
IPC分类号： C04B35/48

2. 发明专利

JPH0559259A IMPREGNATING LIQUID FOR POROUS GRINDSTONE 失效
公开(公告)号：JPH0559259A
公开(公告)日：1993-03-09
申请号：JP1742292
申请日：1992-01-04
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/32 , C08K5/07 , C08L61/04 , C08L61/06
摘要： PURPOSE:To obtain an impregnating liquid to be used for production of a grindstone excellent in water resistance, grinding properties and lapping properties by incorporating thereinto a phenolic resin, PVA, an aldehyde and an acid catalyst. CONSTITUTION:The title liquid contains (A) a phenolic resin, (B) PVA, (C) an aldehyde (e.g. acetaldehyde), and (D) an acid catalyst (e.g. hydrochloric acid or p-toluenesulfonic acid). The amt. of the component B is 5-95 pts.wt. based 100 pts.wt. component A, while the amt. of the component C is 5-10 pts.wt. based on 100 pts.wt. component B. The impregnating liquid has a good affinity for a grindstone, as different from conventional impregnating liquid contg. only a phenolic resin, to cause no unevenness. As a result, the final product is uniform in hardness, water resistance, etc., and undergoes no cracking during heating.

3. 发明专利

JPH0381212A PRODUCTION OF DENTAL PORCELAIN FOR PREVENTING YELLOWING 失效
公开(公告)号：JPH0381212A
公开(公告)日：1991-04-05
申请号：JP21601589
申请日：1989-08-24
申请人： NORITAKE CO LTD
发明人： KAMIYA TADAO , INOUE MOTOYUKI , INADA HIROSHI
IPC分类号： A61K6/027 , A61K6/06 , C04B35/00 , C04B37/02
摘要： PURPOSE:To obtain a dental porcelain having a prescribed color tone without exhibiting yellowing phenomenon by adding prescribed amounts of antimony trioxide and nitric acid or a salt thereof to a porcelain raw material, heat- treating the resultant mixture at the softening temperature or above, pulverizing the prepared melt and washing the produced powder with water. CONSTITUTION:Antimony trioxide in an amount of 0.1-2.0wt.% based on a porcelain raw material and nitric acid or as a salt thereof in an amount of 0.01-5wt.% based on the porcelain raw material are added thereto and the resultant blended powder is then heat-treated at the softening temperature thereof or above. The prepared melt is subsequently pulverized and washed with water to afford a dental porcelain. In the pulverizing step of the melt, 0.01-5wt.% nitric acid or salt thereof is preferably readded. A porcelain layer having a prescribed tone without exhibiting yellowing phenomenon even in baking and calcining thereof especially on a metal surface containing silver can be formed by using the aforementioned porcelain. Yellowing can be more surely prevented by readding the nitric acid or salt thereof without causing clouding.

4. 发明专利

JPH0138628B2 失效
公开(公告)号：JPH0138628B2
公开(公告)日：1989-08-15
申请号：JP18099181
申请日：1981-11-13
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , YOGO TAKAO
IPC分类号： C04B35/583 , B24D3/00 , B24D3/02 , B24D3/14

5. 发明专利

JPS63156063A HIGH TEMPERATURE STRENGTH AND HOT WATER STABILITY ZIRCONIA BASE CERAMICS 失效
公开(公告)号：JPS63156063A
公开(公告)日：1988-06-29
申请号：JP30072086
申请日：1986-12-17
申请人： NORITAKE CO LTD
发明人： HIRANO MASANORI , KANI AKIRA , INADA HIROSHI
IPC分类号： C04B35/48

6. 发明专利

JPS6048919B2 失效
公开(公告)号：JPS6048919B2
公开(公告)日：1985-10-30
申请号：JP4359877
申请日：1977-04-18
申请人： NORITAKE CO LTD
发明人： SHIMADA MASAYUKI , INADA HIROSHI
IPC分类号： H05K3/12 , C09D5/24 , H01B1/02 , H01B1/06 , H01B1/16 , H05K1/09

7. 发明专利

JPS59142069A Preparation of porous grindstone and immersion liquid thereof 失效
标题翻译：多孔磨石及其浸出液的制备
公开(公告)号：JPS59142069A
公开(公告)日：1984-08-15
申请号：JP1151583
申请日：1983-01-28
申请人： Noritake Co Ltd
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/28 , B24D3/30 , B24D3/32
CPC分类号： B24D3/32
摘要： PURPOSE:To improve the water resistance, grinding performance, and lapping performance of the captioned grindstone by using the combination of PVA, aldehyde, and acid, as the phenol-resin containing immersion liquid for a porous grindstone which is fixedly molded, thus improving the affinity with a PVA bond grindstone. CONSTITUTION:A proper kind of PVA is used for grindstone bonding agent, and 5-95parts PVA by weight is used for 100parts phenol-resin by weight. Aldehyde group is necessary in 20-80pts.wt. with respect to 100parts. PVA by weitht. Acidic catalyst is hydrochloric acid, sulfuric acid, etc., and 5-10pts.wt. is required for 100parts PVA by weight. The grindstone is immersed into said immersion liquid and then dried, and heat-treated at 40-130 deg.C for formal reaction and phenol-resin condensation, and further heat-treated at 130-200 deg.C for several hours for hardening. Thus, the grindstone which is uniform and free from irregularity can be prepared without forming crack during heating. Moreover, a grindstone having the superior water resistance, strength, grinding performance, abrasion proofness, and the good lapping performance can be obtained.
摘要翻译：目的：通过使用PVA，醛和酸的组合提高标题磨石的耐水性，研磨性能和研磨性能，作为固体成型用的多孔磨石的含酚树脂浸渍液，从而改善了与PVA粘结磨石的亲和力。构成：用于研磨粘合剂的适当种类的PVA，以重量计为100份的酚醛树脂使用5-95重量份的PVA。醛类是20-80pts.wt。相对于100件。 PVA由weitht。酸性催化剂为盐酸，硫酸等，5-10pts.wt。是100重量份的PVA。将磨石浸入所述浸渍液中，然后干燥，并在40-130℃下进行热处理，进行正式反应和酚醛树脂缩合，并进一步在130-200℃热处理几小时进行硬化。因此，可以在加热期间制备均匀且无凹凸的磨石，而不会形成裂纹。此外，可以获得具有优异的耐水性，强度，研磨性能，耐磨性和良好研磨性能的磨石。

8. 发明专利

JPH066512B2 失效
公开(公告)号：JPH066512B2
公开(公告)日：1994-01-26
申请号：JP16946485
申请日：1985-07-31
申请人： NORITAKE CO LTD
发明人： HIRANO MASANORI , INADA HIROSHI
IPC分类号： C04B35/584 , C04B35/58

9. 发明专利

JPS6246959A HEAT-STABILITY-RESISTANT HIGH TOUGHNESS CERAMIC SINTERED BODY AND MANUFACTURE 失效
公开(公告)号：JPS6246959A
公开(公告)日：1987-02-28
申请号：JP18272685
申请日：1985-08-20
申请人： NORITAKE CO LTD
发明人： HIRANO MASANORI , INADA HIROSHI
IPC分类号： C04B35/48 , G06F1/26

10. 发明专利

JPS61241105A SCREW TYPE EXTRUDING MACHINE OR KNEADING MACHINE 失效
公开(公告)号：JPS61241105A
公开(公告)日：1986-10-27
申请号：JP8144385
申请日：1985-04-18
申请人： NORITAKE CO LTD , MITSUBISHI RAYON ENG
发明人： SUGAI KIYOSHI , ICHII KEIZO , TAKANE SHIGERU , YOSHIKAWA TAKAYUKI , INADA HIROSHI , YAMADA TAKAO
IPC分类号： B29C47/60 , B01F7/00 , B01F7/02 , B28B3/22 , B29B7/38 , B29C47/66

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