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Louisa Kallhoff Associate Employment Law & Litigation


Louisa Kallhoff is an associate in the Düsseldorf office and a member of the practice group Employment Law.

Louisa advises national and international companies on all issues of individual and collective employment law.

The main focus of her practice comprises employment aspects of transactions and restructurings, as well as employment and labor law issues such as personnel leasing, co-determination of employees and service agreements of managing directors and board members. She also advises national and international companies on day-to-day employment law matters.

Louisa Kallhoff joined Orrick in 2016.

George L. Kanabe Partner Intellectual Property, U.S. International Trade Commission

San Francisco

George Kanabe, partner in the San Francisco office, is a member of the Intellectual Property group.

George's practice focuses primarily on patent litigation; and his experience includes negotiating license agreements, performing due diligence investigations, conducting patentability, infringement and validity analyses, authoring opinion letters, and preparing reexamination requests for issued patents.

He has significant experience drafting and prosecuting patent applications, as a registered practitioner before the U.S. Patent and Trademark Office.

George has represented litigation and prosecution clients in a variety of technological fields, including the electrical arts, computer software, telecommunications, mechanical and medical devices, and financial services.


Larry Kane Partner M&A and Private Equity, Technology Companies Group

San Francisco

Lawrence Kane, a San Francisco corporate partner, represents newly formed and high growth technology companies as well as more established companies in a wide range of transactions.

His representative transactions include formation, angel and venture capital financing, mergers and acquisitions, joint ventures and partnerships, lease and licensing transactions, private and public offerings of securities. He also has been active in forming venture capital and related funds.

Larry represents public companies such as Applied Materials and IAC and private companies such as 28msec, Ivy Bridge College, Ameritas Education, APE, Allotrope Ventures, Blue Ocean Mariculture, Breezyprint, Brightbytes, Captain U, ClearPower, Cloudmark, Communities with Cause, Conceptua Math, Ekwity, Goanimate, Gradescope, IT Agility, Kaaco, iplayerpro, LingoZing, Pencil Networks, Jasper Ridge, Locomotive, Renewvia Energy Corporation,, Smitten Ice Cream, Synergis Education, Three D Spirits, Tractus, Vingd, Watchwith, Weekend Sherpa, Willpower Labs and Wineluv.

Larry also represents a number of private equity and financial companies including, AVG Team Builder Ventures, Partnership Capital Growth, University Ventures and UC Santa Barbara Foundation.


Charles Kaplan Partner International Arbitration & Dispute Resolution, Energy


Charles Kaplan is an experienced arbitration lawyer based in Orrick’s Paris office. He has conducted arbitrations on gas pricing disputes, oil production sharing agreements, tax stabilization agreements, international joint ventures, as well as aircraft development programs, in France and elsewhere.

Highly regarded in the international arbitration market, Charles is consistently recognized as a key practitioner particularly in Europe, Africa and the Middle East. According to Chambers & Partners, clients describe him as an “extremely bright” expert on cross-border matters and praise his “commercial insight and dedication.” Ranked among Chambers France’s top International Arbitration lawyers, Charles is said to be “a very good lawyer whose experience in international arbitration is superb.”

In particular, Charles advises French and international energy majors, and industrials. He has extensive experience of arbitration under ICC, ICSID, French Arbitration Association, LCIA and Milan Chamber rules. He regularly sits as arbitrator.

He originally qualified as an English barrister and then as a French avocat. In addition to investment disputes, he has handled civil as well as common law disputes in a number of jurisdictions in Europe, Africa, the Middle East and Asia.

Before he joined Orrick, he was co-head of Herbert Smith Freehills LLP's Global Arbitration practice and led the Paris Arbitration group.


Konstantin Kasyan Senior Associate Complex Litigation & Dispute Resolution, International Arbitration & Dispute Resolution


Konstantin Kasyan, a senior associate in Orrick’s Moscow office, focuses his practice on dispute resolution in Russia and abroad. Konstantin acts as the main attorney leading representation of clients in major cross-border disputes.

Konstantin is a member of the firm’s Complex Litigation and Dispute Resolution Group. He is qualified to practice law in Russia and New York.


Yoichi Katayama Partner Energy, Infrastructure


Yoichi Katayama, a partner in the Tokyo office, is a member of the Energy and Infrastructure Group. His practice focuses on the area of international infrastructure project development and finance, focusing on power, telecommunications and other infrastructure projects representing multinational developers and financial institutions.

Prior to joining Orrick in 1997, Mr. Katayama served as a general counsel for Tomen Power Corporation. He was an associate general counsel at Tomen America Inc. in New York between 1989 and 1993.

Rene Kathawala Pro Bono Counsel

New York

Rene Kathawala serves as Orrick's firmwide pro bono counsel, responsible for managing and initiating the firm's pro bono activities, including all administrative and legal aspects.

Rene works with other pro bono counsel and legal services nonprofits to increase the quantity and quality of pro bono representation that is being provided to indigent clients in each of the cities worldwide where Orrick has a presence. In addition, he supervises and directly works on cases in such diverse areas as immigration law, family and matrimonial law, housing law, public benefits law, employment law counseling, impact litigation and nonprofit advice and counseling. Rene has worked on many substantial matters in the federal and state systems over his career that are reported as precedent. He also works with firm attorneys to strengthen the firm's innovative Impact Finance team that he founded and that provides representation in diverse transactional areas to nonprofit, for profit and hybrid organizations dedicated to providing basic services to poor persons around the world in areas including microfinance, water, education, energy, housing and health.

Immediately prior to joining Orrick in his current position, Rene served as a law clerk to the Honorable I. Leo Glasser, United States District Court for the Eastern District of New York, between September 2004 and August 2005. He was an associate in Orrick's employment law department between October 1996 and July 2004 where he practiced in general labor and employment counseling and litigation, with a focus on trade secrets. During that time, he initiated a formal pro bono program in the New York office and served as the pro bono coordinator for the office.

Kei Kato Associate Complex Litigation & Dispute Resolution, Antitrust & Competition


Kei Kato is an associate and member of the Complex Litigation and Dispute Resolution Group in the Tokyo office.

Kei focuses on intellectual property, antitrust, product liability, employment, compliance and other commercial disputes, including litigation and international arbitration, for both domestic and non-Japanese companies.

Prior to joining Orrick’s Tokyo office, Kei was an associate at Nishimura and Asahi.


Joanna Kay Of Counsel Oil & Gas, Energy


Joanna Kay, of counsel in the London office, specialises in international oil and gas transactions including upstream operations, project development, mergers and acquisitions and gas and LNG trading and storage arrangements.

Joanna advises clients on a wide range of upstream and midstream oil and gas agreements including concessions, AMIs, farm-ins and SPAs, royalties, operating and unitisation agreements, service and drilling contracts as well as transportation and sales agreements.

Joanna has worked in house as well as in private practice, including at Tullow Oil plc where she focused on upstream development projects and frontier exploration opportunities in Africa, Europe and the North Atlantic region.

In 2015 Joanna was recognised as a London Rising Star, Super Lawyers