Jump to the main text

Environmental Activities

Hitachi

When we left the train at the JR Yamazaki Station, west of Kyoto City, we saw the Kyoto Works of Hitachi Maxell, Ltd., surrounded by bamboo groves and the green trees. The air felt refreshing. We wondered how such a splendid environment could be preserved. We learned many things during our visit to the works.

Products familiar in our daily lives, such as batteries and tapes, are produced here.

InterviewerHitachi Maxell is widely known with its music tapes, video tapes, DVD and batteries.

[Image] Looking at products on display

GuideBatteries have been the main product since the foundation of the company, and 'MAXELL' was initially the brand name for batteries. It is an abbreviated name of 'Maximum Capacity Dry Cell' meaning high performance batteries.
Let me take you to our product museum first, where the history of Hitachi Maxell products is presented in an orderly manner.

[Image] UD cassette tape marketed in 1970
UD cassette tape marketed in 1970

HiranoOh! I often used this cassette tape. It's a Maxell UD Series .... it reminds me of the good old days.

TominagaWe use microphone loud-speakers with a cassette recorder at school, so I frequently use cassette tapes. They are very useful in the morning assembly and for playing music at school athletic festivals.

NakamuraI use CDs and MDs when listening to music. They are more familiar than cassette tapes for me.

[Image] Picking them up for a closer look

KanekoThis is the alkaline battery often used for mobile game machines, isn't it? A little expensive but it has a long life, which reduces waste. I'm in favor of alkaline batteries for this reason.

GuideAll of you seem to find the products familiar to you. Next, I will show you the production lines in the factory. These are not usually open to non-company personnel.

[Image] Observing how products are made

[Image] Describing how products are made in the factory

GuideThis is the production line for tapes. As you probably noticed, the specific feature of the Kyoto Works is that the main product in this production line has changed with the times. It used to be cassette tapes and video tapes, but now data tapes for computers are the main products in this line.

HiranoThe tapes are wound up by the robots. The fabrication of tapes into cassettes is also almost completely automated. That's just amazing!

[Image] Explaining the mechanism of lithium-ion cells

GuideThis is the production line for another main product, batteries. Lithium ion batteries, used for cellular phones and other devices, are manufactured in this line. Our tape processing technology is applied to enable these batteries to be repeatedly charged and used.

NakamuraI see. This battery might be used in my cellular phone. Well, Maxell products have always been with us as daily gadgets even though times are changing.

GuideWhat is more, our focus is concentrated on the development of environmentally conscious products called eco-products, in which eco-friendly materials such as recycled plastics and paper are used with reduced amounts of packaging materials. Now these eco-products take up 90% of all Maxell products.

AllWe didn't know that these products are this environmentally friendly! I can tell that you are making various efforts as a corporation. This factory is also very refreshing as it's surrounded by trees.

GuideThe area of this factory is about 210,000 square meters. This is also a historical place full of romance, being the site of the battle of Ten'nozan, an epic battle in remote Japanese history which determined the fate of the empire, and the ancient shrine Rikyu Hachimangu. The beautiful natural environment unique to Kyoto must be preserved forever.

[Image] Our main products change with the times! Traditional tape processing technology is used for producing lithium ion batteries and computer tapes.

[Image] Lithium ion battery・Computer tape

Our location in Kyoto means that we cannot be indifferent to global warming!

InterviewerAt last the Kyoto Protocol has come into effect. As a super eco-factory in Kyoto, what measures do you take to protect the environment?

GuideHitachi Maxell considers the environment based on four key points, the 'global warming prevention', 'creation of a recycling-based society', 'environmentally conscious products' and 'harmony with local communities'. In particular we try to find the best way to prevent global warming.

KanekoI'm afraid to say that there are more students who don't know about the Kyoto Protocol than those who do know it. I wonder if Japan can really reduce greenhouse effect gas emissions by 6% by 2012?

NakamuraListening to what you have said, I'm interested in the ways employed in this factory to reduce greenhouse effect gas emissions.

GuideThe most advanced cogeneration and regenerative deodorizing furnace facilities have been introduced in this factory as measures to curb global warming. These facilities are capable of deodorizing and detoxifying organic solvent gases emitted in the course of magnetic tape manufacturing processes, by burning these gases and recovering their thermal energy to operate air conditioning facilities in the factory.

[Image] Energy Efficient Generation to save up to 6,450kW! Cogeneration facilities produce 50% of power supplied to the factory.

[Image] Cogeneration facilities

NakamuraI can tell that you are trying to use your technologies to keep the air clean and protect the environment in Kyoto.

HiranoIndeed, organic solvent gases cause acid rain, as well as their odor, but I haven't noticed any strange odor in this factory.

GuideCertainly not in this factory. 99% of the odor is removed by passing odorous gases through a regenerative deodorizing furnace. It would be devastating if these organic solvent gases were emitted in the atmosphere as they are, but we decompose these gases into water and carbon dioxide before releasing them into the atmosphere in order not to pollute the air.

TominagaThere were many chemical factories in the town where I lived before, which frequently released noxious fumes. Remembering this, it is really remarkable how good a regenerative deodorizing furnace is.

[Image] Odor of organic solvent gases is cut by 99%! VOC is decomposed in a regenerative deodorizing furnace. We won't contaminate the clean air of Kyoto.

[Image] a regenerative deodorizing furnace

* VOC: Volatile Organic Compounds

GuideThere's more. The cogeneration system can generate a maximum of 6,450 kilowatts of power. This means the system efficiently supplies the power required for half of the demand at the factory. This energy efficiency contributes to reducing as much as 31% of CO2 emissions at the Kyoto Works.

[Image] Cogeneration System

[Image] Reductions in CO2 emissions by 31%! As much as 4,275 tons of CO2 emissions are cut through the optimum control of power and steam according to our needs.

AllThe CO2 emissions reduction target allocated to Japan in the Kyoto Protocol is 6%, but this factory has already cut CO2 emissions by 31%! At this rate, the final goal can be achieved.

GuideYes, I hope we can. Besides, we will consistently do what we can to achieve the goal through various environmental activities.

We won't compromise in our efforts to stop global warming here in Kyoto. In order to be certified as a super eco-factory, however, not only do we need to raise production efficiency but all of us also have to make an effort to co-operate with local communities in order to protect the environment.

What is the Kyoto Protocol?

Reductions by 6% in greenhouse effect gas emissions by 2012!
An international conference was held in Kyoto in 1997 to discuss ways to reduce greenhouse effect gases such as CO2, and it was agreed that the developed countries would reduce their greenhouse effect gas emissions below their 1990 levels in the period from 2008 to 2012. This is called the Kyoto Protocol.

Related link

Kyoto-based eco-activities contribute to improvements in the global environment!
  1. Part 1 Let's take action in Kyoto to stop global warming!
  2. Part 2 Eco-activities in Kyoto with Communities and Children
  3. Part 3 Starting with what we can do - Discussions