Patent Assignment
Reel/Frame 024982/0957
Change of Name
Recorded: 2010-09-15
Pages: 24
Assignor
SUMITOMO SPECIAL METALS CO., LTD.
Executed: 2007-10-03
Assignee
HITACHI METALS, LTD.
2-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO, JAPAN
Covered Properties
(67)
Process for Producing Alloy Powder Material for R-Fe-B Permanent Magnets and Alloy Powder for Adjusting the Composition Therefor
Patent:
5,387,291 →
Application:
08/032,101 →
Process for Preparing R-Fe-B Type Sintered Magnets Employing the Injection Molding Method
Patent:
5,427,734 →
Application:
08/080,771 →
Fabrication Methods and Equipment for Granulated Powders
Patent:
5,575,830 →
Application:
08/360,632 →
R-Fe-B Permanent Magnet Materials and Process of Producing the Same
Patent:
5,788,782 →
Application:
08/512,951 →
Fabrication Methods for R-Fe-B Permanent Magnets
Patent:
5,666,635 →
Application:
08/523,928 →
Fabrication Methods and Equipment for Granulated Powders
Patent:
5,662,943 →
Application:
08/641,772 →
Method for Preparing Rare-Earth System Sintered Magnet
Patent:
6,187,259 →
Application:
08/793,368 →
Permanent Magnet for Ultra-High Vacuum and Production Process Thereof
Patent:
6,080,498 →
Application:
08/875,768 →
Method for Cutting Rare Earth Alloy, Method for Manufacturing Rare Earth Alloy Plates and Method for Manufacturing Rare Earth Alloy Magnets Using Wire Saw, and Voice Coil Motor
Patent:
6,381,830 →
Application:
09/234,102 →
Corrosion-Resistant Permanent Magnet and Method for Manufacturing the Same
Patent:
6,211,762 →
Application:
09/242,825 →
Fe-B-R Based Permanent Magnet Having Corrosion-Resistant Film, and Process for Producing the Same
Patent:
6,444,328 →
Application:
09/382,588 →
Process for Producing Fe-B-R Based Permanent Magnet Having a Corrosion-Resistant Film
Patent:
6,251,196 →
Application:
09/383,274 →
Surface-Treating Process Using Support Member Having Plate-Like Elements
Patent:
6,280,792 →
Application:
09/407,304 →
Process for Hydrogen-Pulverizing a Rare Earth Metal-Based Magnetic Material, and Hydrogen-Pulverizing Case
Patent:
6,247,660 →
Application:
09/413,353 →
Powder Pressing Apparatus and Powder Pressing Method
Patent:
6,482,349 →
Application:
09/421,237 →
Working Device and Working Method for Magnet Member
Patent:
6,322,428 →
Application:
09/424,055 →
Forming Method and Forming Apparatus
Patent:
6,325,965 →
Application:
09/431,055 →
Process for Handling Powder Green Compacts and Rare Earth Metal-Based Magnet
Patent:
6,537,488 →
Application:
09/440,100 →
Corrosion-Resisting Permanent Magnet and Method for Producing the Same
Patent:
6,275,130 →
Application:
09/445,810 →
Method of Producing R-Fe-B Permanent Magnet, and Lubricant Agent and Release Agent for Use in Shaping the Same
Patent:
6,361,738 →
Application:
09/446,334 →
Rare Earth Metal-Based Permanent Magnet, and Process for Producing the Same
Patent:
6,326,087 →
Application:
09/461,006 →
Feedstock Powder for R-Fe-B Magnet and Process for Producing R-Fe-B Magnet
Patent:
6,149,861 →
Application:
09/462,902 →
Process and Apparatus for Supplying Rare Earth Metal- Based Alloy Powder
Patent:
6,299,832 →
Application:
09/472,247 →
Working Cutting Apparatus and Method for Cutting Work
Patent:
6,595,094 →
Application:
09/494,124 →
Method for Producing Magnet Using the Pulverizer
Patent:
6,403,024 →
Application:
09/503,738 →
Method and Apparatus for Mixing Powder with Liquid
Patent:
6,464,386 →
Application:
09/513,085 →
Case for Use in Sintering Process to Produce Rare-Earth Magnet, and Method for Producing Rare-Earth Magnet
Patent:
6,464,931 →
Application:
09/517,493 →
Milling Apparatus and Milling Method
Patent:
6,474,576 →
Application:
09/522,472 →
Punch, powder pressing apparatus and powder pressing method
Patent:
6,332,932 →
Application:
09/551,392 →
Corrosion-Resistant Permanent Magnet and Method for Producing the Same
Patent:
6,281,774 →
Application:
09/554,013 →
Powder feeding apparatus, powder feeding method and powder pressing apparatus
Patent:
6,321,800 →
Application:
09/560,352 →
Method of Machining Rare Earth Alloy and Method of Fabricating Rare Magnet Using the Same
Patent:
6,471,583 →
Application:
09/566,736 →
Rare-earth alloy powder pressing apparatus and rare-earth alloy powder pressing method
Patent:
6,352,598 →
Application:
09/567,987 →
Surface Treating Process, Surface Treating Apparatus, Vapor-Depositing Material, and Rare Earth Metal-Based Permanent Magnet with Surface Treated
Patent:
6,391,386 →
Application:
09/568,580 →
Magnet Member Cutting Method and Magnet Member Cutting
Patent:
6,386,948 →
Application:
09/583,559 →
Method of producing R-Fe-B type sintered magnet, method of preparing alloy powder material for R-Fe-B type sintered magnet, and method of preserving the same
Patent:
6,344,168 →
Application:
09/649,572 →
Process for Producing Rare Earth Metal-Based Permanent Magnet Having Corrosion-Resistant Film
Patent:
6,376,089 →
Application:
09/649,593 →
Method and Apparatus for Cutting Rare Earth Alloy
Patent:
6,443,143 →
Application:
09/662,136 →
Process and Apparatus for Supplying Rare Earth Metal-Based Alloy Powder
Patent:
6,481,993 →
Application:
09/669,576 →
Mobile-Assisted Network Based Techniques for Improving Accuracy of Wireless Location System
Patent:
6,463,290 →
Application:
09/679,228 →
Method and Apparatus for Producing Compact of Rare Earth Alloy Powder and Rare Earth Magnet
Patent:
6,432,158 →
Application:
09/691,266 →
Method for Manufacturing Rare Earth Magnet
Patent:
6,482,353 →
Application:
09/702,130 →
Method and Apparatus for Feeding Magnetic Powder and Method for Manufacturing Magnet
Method and Apparatus for Cutting a Rare Earth Alloy
Method for Producing Powder Compact and Method for Manufacturing Magnet
Method of Pressing Rare Earth Alloy Magnetic Powder
Powder Compacting Apparatus and Method of Making Rare-Earth Alloy Magnetic Powder Compact
Blasting Apparatus
Powder Compacting Apapratus and Method of Producing a Rare-Earth Magnet Using the Same
Method for Producing Rare-Earth Magnet
Rare Earth Magnet and Method for Manufacturing the Same
Fe - B - R Based Permanent Magnet Having Corrosion-Resistant Film, and Process for Producing the Same
Punch, Powder Pressing Apparatus and Powder Pressing Method
Suspension Application Apparatus and Method for Manufacturing Rare Earth Magnet
Method for Polishing and Chamfering Rare Earth Alloy, and Method and Machine for Sorting Out Ball Media
Method for Manufacturing Rare Earth Magnet and Powder Compacting Apparatus
Rare Earth Magnet and Method for Making Same
Powder Pressing Apparatus and Powder Pressing Method
Method for Cutting Rare Earth Alloy, Method for Manufacturing Rare Earth Alloy Plates and Method for Manufacturing Rare Earth Alloy Magnets Using Wire Saw, and Voice Coil Motor
Powder Feeding Apparatus, Powder Feeding Method and Powder Pressing Apparatus
Patent:
6,474,371 →
Application:
09/933,076 →
Powder Feeding Apparatus, Pressing Apparatus Using the Same, Powder Feeding Method and Sintered Magnet Manufacturing Method
Rare Earth Magnet and Method for Manufacturing the Same
Rare Earth Magnet and Method for Producing the Magnet
Surface Treating Process, Surface Treating Apparatus, Vapor-Depositing Material, and Rare Earth Metal - Based Permanent Magnet with Surface Treated
Milling Apparatus and Milling Method
Rare Earth Magnet and Method for Manufacturing the Same
Punch, Powder Pressing Apparatus and Powder Pressing Method
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 24, 1993
From: YAMASHITA, OSAMU; ASANO, MASAHIRO; SAIGO, TSUNEKAZU
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 006654/0549 →
Assignment of Assignor's Interest
Oct 20, 1994
From: KANEKO, YUJI; TOKUHARA, HIROKI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 007169/0859 →
Assignment of Assignor's Interest
Sep 6, 1995
From: KANEKO, YUJI; ISHIGAKI, YAOYUKI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 007654/0895 →
Corrective Assignment to Correct an Assignor on a Document Previously Recorded on Reel 7654 Frame 0895
Mar 20, 1996
From: KANEKO, YUJI; ISHIGAKI, NAOYUKI
To: SUMITOMO SPEICAL METALS CO., LTD.
Reel/Frame 007870/0130 →
Assignment of Assignor's Interest
Jul 10, 1996
From: YAMASHITA, OSAMU; SAIGO, TSUNEKAZU; KOHARA, SEIICHI; KITAYAMA, HIROKAZU
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 008029/0431 →
Assignment of Assignor's Interest
Apr 3, 1997
From: YAMASHITA, OSAMU; SAIGO, TSUNEKAZU; KOHARA, SEIICHI; KITAYAMA, HIROKAZU
To: SUMITOMO SPECIAL METALS COMPANY LIMITED
Reel/Frame 008513/0725 →
Assignment of Assignor's Interest
Aug 5, 1997
From: KIKUI, FUMIAKI; IKEGAMI, MASAKO; YOSIMURA, KOHSHI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 008899/0701 →
Assignment of Assignor's Interest
Sep 30, 1997
From: KANEKO, YUJI; ISHIGAKI, NAOYUKI; TOKUHARA, KOKI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 008762/0082 →
Assignment of Assignor's Interest
Jan 19, 1999
From: CHIKUBA, MASANORI; ISHIDA, HAZIME
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 009724/0476 →
Assignment of Assignor's Interest
Aug 25, 1999
From: NISHIUCHI, TAKESHI; KIKUI, FUMIAKI; YOSHIMURA, KOHSHI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010204/0175 →
Assignment of Assignor's Interest
Aug 26, 1999
From: NISHIUCHI, TAKESHI; YOSHIMURA, KOHSI; KIKUI, FUMIAKI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010193/0819 →
Assignment of Assignor's Interest
Sep 29, 1999
From: TOCHISHITA, YOSHIMI; FUJIWARA, YOSHIO; ASAGAI, YOSHIHIRO; OHTAGAKI, KEN
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010287/0266 →
Assignment of Assignor's Interest
Oct 20, 1999
From: KOHARA, SEIICHI; HARADA, TSUTOMU
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010339/0349 →
Assignment of Assignor's Interest
Nov 1, 1999
From: MAKITA, KEN; NOUMI, MASAO; YAMASHITA, OSAMU
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010368/0376 →
Assignment of Assignor's Interest
Nov 15, 1999
From: OKUMURA, SHUHEI; HASHIKAWA, HIROSHI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010399/0132 →
Assignment of Assignor's Interest
Nov 18, 1999
From: KONDO, SADAHIKO
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010443/0293 →
Assignment of Assignor's Interest
Dec 7, 1999
From: IMAI, YASUHIKO; TOKUHARA, KOKI; OKAYAMA, KATSUMI; OOTA, AKIYASU
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010440/0044 →
Assignment of Assignor's Interest
Dec 15, 1999
From: NISHIUCHI, TAKESHI; KIKUI, FUMIAKI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010465/0985 →
Assignment of Assignor's Interest
Dec 27, 1999
From: KOHARA, SEIICHI; OKUMURA, SHUHEI; NAKAMURA, AKIRA
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010492/0831 →
Assignment of Assignor's Interest
Feb 15, 2000
From: OOTA, AKIYASU; TSUJIMOTO, AKIHOTO; OKAYAMA, KATSUMI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010575/0761 →
Assignment of Assignor's Interest
Mar 28, 2000
From: KANEKO, YUJI; BABA, JUNICHIRO; TANAKA, KAZUO; MORI, SHIZUO
To: SUMITOMO SPECIAL METALS CO., LTD
Reel/Frame 010687/0151 →
Assignment of Assignor's Interest
Apr 7, 2000
From: KONDO, SADAHIKO; SASAKI, TOSHIAKI; CHIKUB, MASANORI; HIYOKE, TOSHIFUMI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010723/0885 →
Assignment of Assignor's Interest
Apr 26, 2000
From: KANEKO, YUJI; SASAKAWA, YASUHIDE; KASE, KATSUYA; HASHIKAWA, TAKASHI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010720/0502 →
Corrective Assignment to Correct the Assignor, Filed on 02-15-2000, Recorded on Reel 010575 Frame 0761. Assignor Hereby Confirms the Assignment of the Entire Interest.
May 23, 2000
From: OOTA, AKIYASU; TSUJIMOTO, AKIHITO; OKAYAMA, KATSUMI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 010666/0580 →
Assignment of Assignor's Interest
Sep 14, 2000
From: KIKUI, FUMIAKI; IKEGAMI, MASAKO; YOSHIMURA, KOSHI
To: SUMITOMO SPECIAL METALS CO., LTD.
Reel/Frame 011178/0156 →